De Ridder is a Dutch surname, meaning "the knight". It may refer to:

People

• Alexandra Simons de Ridder (born 1963), German equestrian
• Alfons de Ridder (1882–1960), Flemish writer and poet
• Allard de Ridder (1887–1966), Dutch and Canadian conductor, violist, and composer
• André de Ridder (born 1971), German music conductor
• Chantal de Ridder (born 1989), Dutch footballer
• Daniël de Ridder (born 1984), Dutch footballer
• Daniela De Ridder (born 1962), German politician
• Dirk de Ridder (sailor) (born 1972), Dutch competitive sailor
• Gaspard Deridder (1918–1977), Belgian boxer
• Hilde De Ridder-Symoens (1943–2023), Dutch historian
• Johan de Ridder (1927–2013), South African architect
• Louis De Ridder (1902–1981), Belgian winter sports athlete
• Luis de Ridder (1928–2004), Argentine alpine skier
• Marcello de Ridder (1922–1973), Argentine bobsledder
• Minneke De Ridder (born 1980), Belgian politician
• Paul De Ridder [ de; fr; nl] (born 1948), Belgian historian and politician
• Peter de Ridder (born 1946), Dutch businessman and sailor
• Philippe De Ridder (born 1964), Belgian football player, coach, and administrator
• Reinier De Ridder (born 1990), Dutch mixed martial artist
• Steve De Ridder (born 1987), Belgian footballer
• Willem de Ridder (1939–2022), Dutch artist and anarchist

Other

• DeRidder, Louisiana, a place named for Ella de Ridder, the sister-in-law of a Dutch railroad financier

This disambiguation page lists articles associated with the title De Ridder.
If an internal link led you here, you may wish to change the link to point directly to the intended article.