Shuji Doi (土井 修爾, Doi Shūji; 1 October 1909 – 7 July 1938) was a Japanese water polo player. He competed in the men's tournament at the 1932 Summer Olympics. He died of wounds suffered in the Second Sino-Japanese War.
Source: “Shuji Doi”, English Wikipedia (CC BY-SA 4.0), excerpt