Eki Hioki (日置益; December 21, 1861– October 22, 1926) was a Japanese diplomat. He studied law at Tokyo Imperial University and entered the Japanese foreign service in 1888. He served as ambassador to Germany from September 1907 to August 1908. In 1908-1914 he served as ambassador to Peru. From 1914-1916 he was ambassador to China. In that position, he presented the Chinese government with the 21 demands regarding Japanese interests in China in 1915. From 1918-1920 he served as ambassador to Denmark and Sweden and in 1920-1924 ambassador in Germany. He died of stomach ulcer.
Source: “Eki Hioki”, English Wikipedia (CC BY-SA 4.0), excerpt