Shiga (written: ) is a Japanese surname. Notable people with the surname include:
, Japanese ice hockey player Akiko Shiga (志賀 暁子, 19101990), Japanese actress , Japanese ice hockey player , better known as Tochiazuma Daisuke, Japanese sumo wrestler Jason Shiga (born 1976), American cartoonist , Japanese physician and bacteriologist , Japanese idol and voice actress , Japanese basketball player May Shiga Hornback (1924–1976), American nurse and nursing educator , Japanese writer , Japanese handball player