Ridler is a surname. Notable people with the surname include:
Anne Ridler (1912–2001), British poet and editor David Ridler (born 1976), British footballer and team manager Horace Ridler (1892–1969), British sideshow tattooed man Nick Ridler, British engineer Tony Ridler (1954–2015), Welsh darts player Vivian Ridler (1913–2009), English printer, typographer and scholar
See also Ridler Award, presented at the annual Detroit Autorama for best in show custom-built car