Ritzen

Ritzen is a surname. Notable people with the surname include:


 * Henri Ritzen (1892–1976), Dutch painter
 * Jo Ritzen (born 1945), Dutch economist and social-democratic politician
 * Peter Ritzen (born 1956), Flemish pianist composer and conductor
 * Per-Erik Ritzén (born 1934), Swedish modern pentathlete
 * Pierre Debray-Ritzen (1922–1993), French physician and psychiatrist