Terasawa (written: 寺沢 or 寺澤) is a Japanese surname. Notable people with the surname include:
Buichi Terasawa (1955–2023), Japanese manga artist Daisuke Terasawa (born 1959) Japanese manga artist Junsei Terasawa (born 1950), Japanese Buddhist monk Momoka Terasawa, Japanese voice actress Toru Terasawa (1935–2025), Japanese long-distance runner
See also Terazawa Hirotaka (寺沢広高) (1563–1633), Japanese daimyō of the early Edo period