Sinden is a surname. Notable people with the surname include:
Bradly Sinden (born 1998), British taekwondo athlete Donald Sinden (1923–2014) English stage, television and film actor Harry Sinden (born 1932) former Boston Bruins NHL coach and general manager Jeremy Sinden (1950–1996) English actor, son of Donald Marc Sinden (born 1954) English film director, actor and theatre producer, son of Donald Topsy Sinden (1878–1950) English dancer, actress and singer