|Full name||Hirokazu Ninomiya|
|Date of birth||November 22, 1917|
|Place of birth||Hyogo, Japan|
|Date of death||March 7, 2000(aged 82)|
|Place of death||Minato, Tokyo, Japan|
|Kobe Daiichi High School|
|* Senior club appearances and goals counted for the domestic league only|
Ninomiya was born in Hyogo Prefecture on November 22, 1917. He played for Keio BRB which was consisted of his alma mater Keio University players and graduates. He won Emperor's Cup 7 times (1936, 1937, 1939, 1940, 1951, 1952 and 1954).
On June 16, 1940, when Ninomiya was a Keio University student, he debuted for the Japan national team against Philippines and Japan won the match. This match was the first match since 1936 Summer Olympics and the only match in the 1940s in Japan's "International A Match" due to World War II.
After World War II, Japan national team was resumed activities in 1951. Ninomiya named playing manager for Japan national team for 1951 Asian Games. Japan won the 3rd place at Asian Games. He resigned manager after 1951 Asian Games. He also played at 1954 Asian Games. He played 6 games and scored 1 goal for Japan until 1954.
|Japan national team|