Shigemitsu (written: 茂光 or 重光) is a masculine Japanese given name. Notable people with the name include:
(1913–2012), Japanese judge and academic (born 1966), Japanese footballer (born 1956), Japanese footballer
Shigemitsu (written: 重光) is also a Japanese surname. Notable people with the surname include:
(born 1955), Japanese-South Korean businessman Junko Shigemitsu (born 1949), Japanese-American physicist (1887–1957), Japanese diplomat, politician and war criminal (born 1983), Japanese footballer