Claessens is a Dutch patronymic surname meaning "son of Claes (Nicholas)". It may refer to:

• Alain Claessens (1947–2004), French actor
• Artus Claessens (fl. 1625–1644), Flemish still-life painter
• August Claessens (1885–1954), American politician
• Benny Claessens [de; nl] (born 1981), Belgian theater and movie actor
• Dieter Claessens (1921–1997), German sociologist
• Dominicus Claessens (c. 1625 – c. 1690s), Flemish Baroque painter
• François Claessens (1897–1971), Belgian gymnast
• Gert Claessens (born 1972), Belgian footballer
• Jean Claessens (1908–1978), Belgian footballer
• Lambertus Antonius Claessens (1762–1830), Flemish engraver and publisher
• Nastja Claessens (born 2004), Belgian basketball player
• Olivier Claessens (born 1988), Belgian footballer
• Stijn Claessens (born 1959), Dutch economist
• Tony Claessens (born 1989), Dutch EDM producer better known as Tony Junior

• Claessen

Surname list

This page lists people with the surname Claessens.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.