Ritson is a surname. Notable people with the surname include:
Adam Ritson (born 1976), Australian rugby league playerAlex Ritson (1922–2008), Canadian ice hockey playerBlake Ritson (born 1980), English actor and directorBradley Ritson (born 1982), South African footballerHal Ritson, British musician and record producerJohn Ritson (born 1949), English footballerJohn Anthony Sydney Ritson (1887-1957), English professor of mining and international rugby union playerJoseph Ritson (1752–1803), English antiquaryJoshua Ritson (1874–1955), British Labour Party politicianRalph Gerald Ritson (1885–1966), English polo player