Hikaru Fujita (藤田ひかる, Fujita Hikaru; born 25 April 1990) is a Japanese politician serving as a member of the House of…Hikaru Fujita (藤田ひかる, Fujita Hikaru; born 25 April 1990) is a Japanese politician serving as a member of the House of Representatives since 2026. In the 2025 House of Councillors election, she was a candidate for the House of Councillors.
Takato Ishida (Japanese: 石田 嵩人, Hepburn: Ishida Takato; born 5 February 1990) is a Japanese politician who has been the…Takato Ishida (Japanese: 石田 嵩人, Hepburn: Ishida Takato; born 5 February 1990) is a Japanese politician who has been the governor of Fukui Prefecture since 2026. He was previously a diplomat under the Ministry of Foreign Affairs in Zambia and Australia. He resigned his ministry post to run for governor after his predecessor’s resignation and won the January 2026 election, campaigning on child‑rearing support, crisis management and greater use of social media to engage voters.
Hiromi Takase is a former Japanese politician who was a member of the House of Councillors of Japan. She was elected in…Hiromi Takase is a former Japanese politician who was a member of the House of Councillors of Japan. She was elected in 2016 but retired in 2022 for health reasons.
Hirotaka Ishikawa (born September 12, 1973, in Osaka Prefecture) is a Japanese politician who has served as a member of…Hirotaka Ishikawa (born September 12, 1973, in Osaka Prefecture) is a Japanese politician who has served as a member of the House of Councillors of Japan since 2010. He represents the Osaka at-large district and is a member of the Komeito party.
Rintaro Ogata (緒方林太郎, Ogata Rintaro; born 8 January 1973) is a Japanese politician. He has been a member of the House…Rintaro Ogata (緒方林太郎, Ogata Rintaro; born 8 January 1973) is a Japanese politician. He has been a member of the House of Representatives since 2021, having previously served from 2009 to 2012 and from 2014 to 2017. From 1994 to 2005, he worked at the Ministry of Foreign Affairs.
Rui Arai (新居 るい, Arai Rui, née Matsukawa, 松川; February 26, 1971) is a Japanese politician and diplomat who serves as a…Rui Arai (新居 るい, Arai Rui, née Matsukawa, 松川; February 26, 1971) is a Japanese politician and diplomat who serves as a member of the House of Councillors representing the Liberal Democratic Party. She previously served as Parliamentary Vice-Minister of Defense and Parliamentary Vice-Minister of Cabinet Office. She is the wife of diplomat Yūsuke Arai.
Kyaw Moe Tun (Burmese: ကျော်မိုးထွန်း; born 28 July 1969) is a Burmese diplomat who formerly served as the Permanent…Kyaw Moe Tun (Burmese: ကျော်မိုးထွန်း; born 28 July 1969) is a Burmese diplomat who formerly served as the Permanent Representative of Myanmar to the United Nations. Prior to his appointment to UN, he had served as director-general of International Organizations and Economic Development Department under the Ministry of Foreign Affairs from 2016 to 2018. In 2021, while Tun was serving as ambassador, the Myanmar military overthrew the elected civilian government in a coup d'etat. Tun remained loyal to the civilian government. The military regime attempted to remove him from his post, but Tun remained in his position at the UN.
Masaaki Kanai (Japanese: 金井 正明, romanized: Kanai Masaaki) is a Japanese diplomat, serving as director-general of the…Masaaki Kanai (Japanese: 金井 正明, romanized: Kanai Masaaki) is a Japanese diplomat, serving as director-general of the Japanese Foreign Ministry's Asian and Oceanian Affairs Bureau.
Takehiro Shimada (島田 丈裕, Shimada Takehiro; born April 25, 1967) is a Japanese diplomat. After joining the Ministry of…Takehiro Shimada (島田 丈裕, Shimada Takehiro; born April 25, 1967) is a Japanese diplomat. After joining the Ministry of Foreign Affairs in 1991, he served in a number of senior positions, including Deputy Assistant Minister (Shingikan) in the Minister's Secretariat and Chief of Protocol. In July 2024, he was appointed Minister at the Embassy of Japan in the United States. His father served as a medical officer at a Japanese consulate in Brazil.
Asako Okai is a Japanese diplomat and UN official currently serving as the ambassador of Japan in Bahrain. She started…Asako Okai is a Japanese diplomat and UN official currently serving as the ambassador of Japan in Bahrain. She started her career at the UN as assistant administrator at the United Nations Development Programme (UNDP), and director for the UNDP Crisis Bureau, and became United Nations Assistant Secretary-General in 2018. During her time at the USDP, she was in charge of the UNDP’s corporate crisis-related work.
Shigeo Yamada (山田 重夫, Yamada Shigeo; born July 17, 1964) is a Japanese diplomat. He has served as Japanese Ambassador…Shigeo Yamada (山田 重夫, Yamada Shigeo; born July 17, 1964) is a Japanese diplomat. He has served as Japanese Ambassador to the United States since 2023.
Masataka Okano (岡野 正敬, Okano Masataka, born 15 June 1964) is a Japanese diplomat who served as National Security…Masataka Okano (岡野 正敬, Okano Masataka, born 15 June 1964) is a Japanese diplomat who served as National Security Advisor to the Cabinet in 2025. He previously served as administrative vice minister for foreign affairs from 2023 to 2025.
Takuya Tasso (達増 拓也, Tasso Takuya; born 10 June 1964) is a Japanese politician and the current governor of Iwate…Takuya Tasso (達増 拓也, Tasso Takuya; born 10 June 1964) is a Japanese politician and the current governor of Iwate Prefecture. He is a native of Morioka and graduate of the University of Tokyo.
Faustin Luanga (born 15 February 1964) is a Congolese politician and career diplomat who has been Ambassador-at-large…Faustin Luanga (born 15 February 1964) is a Congolese politician and career diplomat who has been Ambassador-at-large for the Democratic Republic of the Congo since 4 June 2021.
Motohiro Ōno (大野 元裕, Ōno Motohiro; born 12 November 1963) is a Japanese politician and the current governor of Saitama…Motohiro Ōno (大野 元裕, Ōno Motohiro; born 12 November 1963) is a Japanese politician and the current governor of Saitama Prefecture in Japan. He assumed office replacing Kiyoshi Ueda in the August 2019 gubernatorial elections. Ōno previously served as a member of the House of Councilors from 2010 to 2019 and was a senior researcher at the Middle East Institute of Japan.
Hiroshi Suzuki (Japanese: 鈴木浩, Hepburn: Suzuki Hiroshi; born 5 June 1961) is a Japanese diplomat who has served as…Hiroshi Suzuki (Japanese: 鈴木浩, Hepburn: Suzuki Hiroshi; born 5 June 1961) is a Japanese diplomat who has served as Ambassador of Japan to the United Kingdom since September 2024. He previously served as Ambassador of Japan to India and Bhutan from 2022 to 2024.
Hideo Tarumi (垂秀夫) (born May 23, 1961) is a Japanese diplomat who served as the Ambassador to China, from November 2020…Hideo Tarumi (垂秀夫) (born May 23, 1961) is a Japanese diplomat who served as the Ambassador to China, from November 2020 to December 2023.
Kazuhiro Suzuki (Japanese: 鈴木 量博, born 11 April 1961) is a Japanese diplomat. After serving as Director-General of the…Kazuhiro Suzuki (Japanese: 鈴木 量博, born 11 April 1961) is a Japanese diplomat. After serving as Director-General of the North American Affairs Bureau at the Ministry of Foreign Affairs and as Ambassador Extraordinary and Plenipotentiary to Turkey, he currently serves as Ambassador Extraordinary and Plenipotentiary to Australia.
Mami Mizutori (水鳥 真美, Mizutori Mami; born 15 November 1960) is a Japanese diplomat. She has been the Assistant…Mami Mizutori (水鳥 真美, Mizutori Mami; born 15 November 1960) is a Japanese diplomat. She has been the Assistant Secretary-General and Special Representative of the Secretary-General for Disaster Risk Reduction in the United Nations Office for Disaster Risk Reduction (UNDRR, formerly UNISDR) since March 2018.
Fumio Iwai (Japanese: 岩井文男) (born 17 July 1960), is a Japanese politician who currently serves as the ambassador of…Fumio Iwai (Japanese: 岩井文男) (born 17 July 1960), is a Japanese politician who currently serves as the ambassador of Japan to Saudi Arabia, and previously served as the Ambassador of Japan to Iraq.
Yun Duk-min (Korean: 윤덕민; Hanja: 尹德敏; born December 8, 1959) is a South Korean political scientist who is the former…Yun Duk-min (Korean: 윤덕민; Hanja: 尹德敏; born December 8, 1959) is a South Korean political scientist who is the former ambassador of South Korea to Japan. He was a former chancellor of the Korea National Diplomatic Academy.
Kenji Kanasugi (金杉 憲治, Kanasugi Kenji; born September 11, 1959) is the current Japanese ambassador to China. He is…Kenji Kanasugi (金杉 憲治, Kanasugi Kenji; born September 11, 1959) is the current Japanese ambassador to China. He is known for his extensive contributions to Japan's foreign relations in East Asia, particularly with China and the broader Asia–Pacific region. Joining Japan's Ministry of Foreign Affairs in 1983, he has held numerous significant roles in Japanese government and foreign affairs throughout his career. Kanasugi's expertise spans both economic and regional diplomacy. Notable positions he has held include Director-General of the Economic Affairs Bureau and the Asian and Oceanian Affairs Bureau. His work involved managing key international relations, such as coordinating meetings between Japanese and Chinese leaders, including then-Prime Minister Shinzo Abe and Chinese president Xi Jinping. Additionally, Kanasugi served as a Senior Deputy Minister for Foreign Affairs in charge of economic issues, emphasizing his focus on economic diplomacy. In 2020, Kanasugi became Japan's ambassador to Indonesia, where he worked on strengthening bilateral ties and addressing regional challenges. In October 2023, he was appointed Japan's ambassador to China. This marked a strategic move as he became the first ambassador in seven years outside the “China School” (a group of diplomats with specialized training in Chinese language and affairs). His appointment reflects Japan's intent to manage sensitive issues with China, such as maritime territorial disputes and economic tensions, through pragmatic and diplomatic approaches. Kanasugi's tenure as ambassador to China focuses on critical issues, including addressing Beijing's concerns about Japan's wastewater release from the Fukushima nuclear plant. He emphasizes the need for calm, science-based dialogue to resolve conflicts and stabilize Japan-China relations.
Takeo Akiba (秋葉 剛男, Akiba Takeo, born 19 December 1958) is a Japanese diplomat who served as National Security Advisor…Takeo Akiba (秋葉 剛男, Akiba Takeo, born 19 December 1958) is a Japanese diplomat who served as National Security Advisor to the Cabinet from 2021 to 2025. He had a long career as a diplomat in the Ministry of Foreign Affairs, serving as administrative vice minister from 2018 to 2021.
Masahiko Metoki is a Japanese politician who is serving as Director General of the Universal Postal Union, an agency of…Masahiko Metoki is a Japanese politician who is serving as Director General of the Universal Postal Union, an agency of the United Nations, since January 2022.
Noriteru Jaime Fukushima Ichimori (Japanese: 福嶌教輝; born June 3, 1959) is a Mexican-Japanese diplomat who has served as…Noriteru Jaime Fukushima Ichimori (Japanese: 福嶌教輝; born June 3, 1959) is a Mexican-Japanese diplomat who has served as Japanese Ambassador to Mexico since 2021. Born in Mexico to parents from Japan, Fukushima holds dual citizenship. He previously served as Japanese Ambassador to Argentina.
Katsuhiko Oku (奥 克彦 Oku Katsuhiko, 3 January 1958 – 29 November 2003) was a Japanese diplomat who played rugby for…Katsuhiko Oku (奥 克彦 Oku Katsuhiko, 3 January 1958 – 29 November 2003) was a Japanese diplomat who played rugby for Oxford and Waseda University. In Britain he was known as "Katsu".
Koji Tomita (冨田 浩司, Tomita Kōji; born 8 November 1957) is a Japanese diplomat who served as Japanese ambassador to the…Koji Tomita (冨田 浩司, Tomita Kōji; born 8 November 1957) is a Japanese diplomat who served as Japanese ambassador to the United States from 2020 to 2023. He previously served as ambassador to South Korea and Israel.
Jun Yamazaki (山崎 潤, Yamazaki Jun; born 22 September 1956) is a Japanese diplomat and the current Ambassador of Japan to…Jun Yamazaki (山崎 潤, Yamazaki Jun; born 22 September 1956) is a Japanese diplomat and the current Ambassador of Japan to Singapore. He was formerly a United Nations Assistant Secretary-General at the Office of Programme Planning, Budget and Accounts, and Controller. He was appointed to the position by United Nations Secretary-General Ban Ki-moon in August 2008. Yamazaki worked the Japanese Ministry of Foreign Affairs for a number of years. He was Counsellor in the Embassy of Japan in Indonesia. He also acted as deputy director in the United Nations Administration Division of the Multilateral Cooperation Department of the Ministry of Foreign Affairs. In this capacity, he was in charge of administrative and budgetary affairs of the United Nations. He later became Director of the International Peace Cooperation Division and Deputy Director-General for Global Issues in the International Cooperation Bureau of the Ministry of Foreign Affairs in Japan and served until August 2008. From 2003 to 2007, he was a member of the United Nations Advisory Committee on Administrative and Budgetary Questions (ACABQ). Yamazaki obtained his BA degree in international relations from The University of Tokyo.
Junichi Ihara (伊原 純一, Ihara Jun'ichi, born 18 April 1956) is a Japanese diplomat who served as Grand Master of…Junichi Ihara (伊原 純一, Ihara Jun'ichi, born 18 April 1956) is a Japanese diplomat who served as Grand Master of Ceremonies for the Imperial Household from 2023 to 2026. He previously served as Ambassador to France and as Permanent Representative to the International Organizations in Geneva.
Tsuyoshi Yamaguchi (山口 壯, Yamaguchi Tsuyoshi; born 3 October 1954) is a Japanese politician of the Liberal Democratic…Tsuyoshi Yamaguchi (山口 壯, Yamaguchi Tsuyoshi; born 3 October 1954) is a Japanese politician of the Liberal Democratic Party and a member of the House of Representatives. He also served as Minister of the Environment from October 2021 to August 2022.
Cheng Yonghua (Chinese: 程永华; born September 1954) is a Chinese diplomat who served as Ambassador to Japan from 2010 to…Cheng Yonghua (Chinese: 程永华; born September 1954) is a Chinese diplomat who served as Ambassador to Japan from 2010 to 2019.
Yasumasa Nagamine (Nagamine Yasumasa; born April 16, 1954) is a Japanese diplomat and judge served as an associate…Yasumasa Nagamine (Nagamine Yasumasa; born April 16, 1954) is a Japanese diplomat and judge served as an associate justice of the Supreme Court of Japan from 2021 to 2024. Before his appointment to the court, he served as ambassador to the United Kingdom from 2019 to 2021, to South Korea from 2016 to 2019 and to the Netherlands from 2012 to 2013.
Hiroshi Inomata (猪俣 弘司, Inomata Hiroshi) is a Japanese diplomat and Japan's current ambassador to The Netherlands…Hiroshi Inomata (猪俣 弘司, Inomata Hiroshi) is a Japanese diplomat and Japan's current ambassador to The Netherlands, after a previous mission in Pakistan.
Jiro Ono (小野 次郎, Ono Jirō; born 7 August 1953) is a Japanese politician of Your Party, formerly of the Liberal…Jiro Ono (小野 次郎, Ono Jirō; born 7 August 1953) is a Japanese politician of Your Party, formerly of the Liberal Democratic Party, a member of the House of Councillors, formerly a member of the House of Representatives in the Diet (national legislature). A native of Hokuto, Yamanashi, and graduate of the University of Tokyo, he joined the National Police Agency in 1976, receiving a master's degree in jurisprudence from the University of Angers in France while in the agency. He was elected to the House of Representatives for the first time in the 2005 Japanese general election. He ran in House of Councillors election in 2010 as a proportional candidate of Your Party and won.
Jiro Ono (小野 次郎, Ono Jirō; born 7 August 1953) is a Japanese politician of Your Party, formerly of the Liberal…Jiro Ono (小野 次郎, Ono Jirō; born 7 August 1953) is a Japanese politician of Your Party, formerly of the Liberal Democratic Party, a member of the House of Councillors, formerly a member of the House of Representatives in the Diet (national legislature). A native of Hokuto, Yamanashi, and graduate of the University of Tokyo, he joined the National Police Agency in 1976, receiving a master's degree in jurisprudence from the University of Angers in France while in the agency. He was elected to the House of Representatives for the first time in the 2005 Japanese general election. He ran in House of Councillors election in 2010 as a proportional candidate of Your Party and won.
Shinsuke J. Sugiyama (杉山 晋輔, Sugiyama Shinsuke) is a Japanese diplomat who formerly served as Japanese ambassador to…Shinsuke J. Sugiyama (杉山 晋輔, Sugiyama Shinsuke) is a Japanese diplomat who formerly served as Japanese ambassador to the United States. He was previously administrative vice minister for foreign affairs.
Koro Bessho (別所 浩郎, Bessho Kōrō; born 5 February 1953) is a Japanese diplomat who has served as Grand Chamberlain to…Koro Bessho (別所 浩郎, Bessho Kōrō; born 5 February 1953) is a Japanese diplomat who has served as Grand Chamberlain to the Emperor since 2021. He previously served as Permanent Representative to the United Nations from 2016 to 2019, and as President of the United Nations Security Council in July 2016 and December 2017.
Masato Kitera (木寺 昌人, Kitera Masato; born 10 October 1952) is a Japanese diplomat who served as ambassador to France…Masato Kitera (木寺 昌人, Kitera Masato; born 10 October 1952) is a Japanese diplomat who served as ambassador to France from 2016 to 2019 and ambassador to China from 2013 to 2016. Born in Tokyo on 10 October 1952, he studied law at the University of Tokyo and joined the Ministry of Foreign Affairs after graduating in 1976. He served as director for African affairs, chief of the International Cooperation Bureau and chief secretary in the ministry. He also briefly served as Assistant Chief Cabinet Secretary for foreign affairs, before being appointed ambassador to China in 2012, to replace Shinichi Nishimiya, who had died soon after his appointment. Kitera left the post and was appointed Ambassador to France in 2016, serving until 2019. After retiring from public service, Kitera has served on the board of Marubeni, Nippon Steel and Japan Tobacco.
Koji Tsuruoka (鶴岡 公二, Tsuruoka Koji; born 10 August 1952) is a Japanese diplomat. He served as the Japanese ambassador…Koji Tsuruoka (鶴岡 公二, Tsuruoka Koji; born 10 August 1952) is a Japanese diplomat. He served as the Japanese ambassador to the United Kingdom from 2016 to 2019.
Shinichi Nishimiya (西宮 伸一, Nishimiya Shinichi; 1952 – 16 September 2012) was a Japanese diplomat. Nishimiya was…Shinichi Nishimiya (西宮 伸一, Nishimiya Shinichi; 1952 – 16 September 2012) was a Japanese diplomat. Nishimiya was appointed as Ambassador of Japan to the People's Republic of China in 2012. However, he died unexpectedly before traveling to China to present his credentials. Nishimiya studied in the United Kingdom. He was considered one of the leading experts on United States within the Japanese Foreign Ministry. He was well known in U.S. diplomatic and political circles, and was a contributor to programs at the Council on Foreign Relations in New York City. He served at the Japanese Embassy in Beijing in 2005. In 2007, Nishimiya became the head of the Foreign Ministry's North American Affairs Bureau. He then served as the Japanese Consul-General in New York City before being named a deputy minister in 2010. Shinichi Nishimiya was appointed as Japan's Ambassador to China in 2012. He was designated to replace outgoing Ambassador Uichiro Niwa, a former chairman of Itochu. Nishimiya's appointment came at a critical time in relations between China and Japan due to an escalation in tensions over the Senkaku Islands dispute and the ongoing 2012 China anti-Japanese demonstrations. Ambassador Nishimiya collapsed outside of his home shortly after his appointment. He died unexpectedly at a hospital in Tokyo on September 16, 2012, at the age of 60. Japanese Foreign Minister Koichiro Gemba held a press conference to acknowledge the loss of Nishimiya. Gemba noted that it will take time to find a capable replacement for Ambassador to China, especially during the ongoing Senkaku Islands dispute. His widow Sachiko has served as chief lady-in-waiting to the Empress since 2019.
Kang Chang-il (Korean: 강창일; born 28 January 1952) is a South Korean politician who is member of the National Assembly…Kang Chang-il (Korean: 강창일; born 28 January 1952) is a South Korean politician who is member of the National Assembly since 2004. Kang served as South Korea's ambassador to Japan from January 2021 to 2022.
Kenichiro Sasae (佐々江 賢一郎, Sasae Ken'ichirō) is a retired Japanese diplomat who served as Vice Minister for Foreign…Kenichiro Sasae (佐々江 賢一郎, Sasae Ken'ichirō) is a retired Japanese diplomat who served as Vice Minister for Foreign Affairs from 2010 to 2012 and Japan's ambassador to the United States from 2012 to 2018. He is currently President of the Japan Institute of International Affairs.
Carlos Holmes Trujillo García (23 September 1951 – 26 January 2021) was a Colombian dynasty politician, diplomat…Carlos Holmes Trujillo García (23 September 1951 – 26 January 2021) was a Colombian dynasty politician, diplomat, scholar, and attorney who served as minister of defense, foreign affairs, interior, and education. He also served as the mayor of Cali and as ambassador to the Organization of American States (OAS), the European Union, and a number of nations.
Chikahito Harada (原田 親仁, Harada Chikahito; born April 21, 1951) is a Japanese diplomat and former Ambassador to the…Chikahito Harada (原田 親仁, Harada Chikahito; born April 21, 1951) is a Japanese diplomat and former Ambassador to the Russian Federation. In 1999-2001 served as Press Secretary in the Japanese Ministry of Foreign Affairs. In 2001-2002 served as representative of Japan to the North Pacific Anadromous Fish Commission. Served also as Charge d'Affaire at the Japanese Embassy in China and director of the Russia Division at the Japanese Ministry of Foreign Affairs. Harada was the ambassador to the Czech Republic from 2008 to 2010. From 2010 to 2015, he served as the ambassador to the Russian Federation.
Ichirō Komatsu (小松 一郎, Komatsu Ichirō; 8 March 1951 – 23 June 2014) was a Japanese diplomat, civil servant and…Ichirō Komatsu (小松 一郎, Komatsu Ichirō; 8 March 1951 – 23 June 2014) was a Japanese diplomat, civil servant and politician.
Keiichi Hayashi (林 景一, Hayashi Keiichi; born 8 February 1951) is a Japanese diplomat. From 2011 to 2016, he served as…Keiichi Hayashi (林 景一, Hayashi Keiichi; born 8 February 1951) is a Japanese diplomat. From 2011 to 2016, he served as the Japanese ambassador to the United Kingdom.
Yoshinobu Nisaka (仁坂 吉伸, Nisaka Yoshinobu; born 2 October 1950 in Wakayama City) is a former governor of Wakayama…Yoshinobu Nisaka (仁坂 吉伸, Nisaka Yoshinobu; born 2 October 1950 in Wakayama City) is a former governor of Wakayama Prefecture in Japan. He was first elected in 2006 and served for four terms until 2022.
Tadamichi Yamamoto (山本 忠通, Yamamoto Tadamichi; born 1950) is a diplomat, who served as UN Secretary-General's Special…Tadamichi Yamamoto (山本 忠通, Yamamoto Tadamichi; born 1950) is a diplomat, who served as UN Secretary-General's Special Representative for Afghanistan and head of the UN Assistance Mission in Afghanistan (UNAMA) until replaced by Deborah Lyons in March 2020. Previously, he served as the Secretary-General's Deputy Special Representative for Afghanistan dating back to November 2014. He also served as Ambassador of Japan to Hungary in 2012 and was the special representative of the Government of Japan for Pakistan and Afghanistan from 2010 to 2012. Yamamoto also coordinated a ministerial-level international conference on Afghan development, which was held in Tokyo, Japan in July 2012. He completed his Bachelor of Science degree in engineering from the Tokyo Institute of Technology and a bachelor's degree from the University of Oxford.
Masaharu Kono (Japanese: 河野雅治 b. 1948) is a former Japanese career diplomat. He served as the ambassador of Japan to…Masaharu Kono (Japanese: 河野雅治 b. 1948) is a former Japanese career diplomat. He served as the ambassador of Japan to Russia, Italy, Albania, Malta, and San Marino. He presented his credentials to Russian president Dmitry Medvedev on 29 May 2009. In March 2011, was relieved of his position as ambassador to Russia.
Masatoshi Muto (武藤 正敏, Mutō Masatoshi; born December 18, 1948) is a Japanese diplomatic analyst and former diplomat who…Masatoshi Muto (武藤 正敏, Mutō Masatoshi; born December 18, 1948) is a Japanese diplomatic analyst and former diplomat who served as the Japanese ambassador to South Korea from 2010 to 2012. He also served as the Japanese ambassador to Kuwait in the late 2000s and was the Japanese consul-general in Hawaii in the early 2000s. Starting in 2015, he is also an author.