Ritson is an English surname. Notable people with the surname include:
Adam Ritson (born 1976), Australian rugby league player Alex Ritson (1922–2008), Canadian ice hockey player Blake Ritson (born 1980), English actor and director Bradley Ritson (born 1982), South African footballer John Ritson (born 1949), English footballer John Anthony Sydney Ritson (1887–1957), English professor of mining and international rugby union player Joseph Ritson (1752–1803), English antiquary Joshua Ritson (1874–1955), British Labour Party politician Ledger Ritson (1921–1977), English footballer Ralph Gerald Ritson (1885–1966), English polo player
See also Ritson Manuscript, English choirbook Ritsons Force, waterfalls in the Lake District, England