Claes is a surname, and may refer to:
Allessia Claes (born 1981), Belgian politician Bart Claes (born 1989), Belgian politician Dirk Claes (born 1959), Belgian politician Ernest Claes (1885–1968), Belgian author Gabrielle Claes, Belgian museum curator Georges Claes (1920–1994), Belgian racing cyclist Glenn Claes (born 1994), Belgian footballer Hanne Claes (born 1991), Belgian athlete Ian Claes (born 1981), Belgian footballer Jappe Claes (born 1952), Belgian actor Jean Claes (footballer, born 1902) (1902–1979), Belgian footballer Jean Claes (footballer, born 1934) (1934–2004), Belgian footballer Jean-Baptiste Claes (born 1937), Belgian racing cyclist Jeanine Claes (1947–2019), French artist, dancer and choreographer Johnny Claes (1916–1956), Belgian racing driver Kelly Claes (born 1995), American volleyball player Lode Claes (1913–1997), Belgian economist, journalist and politician Lotte Claes (born 1993), Belgian racing cyclist and duathlete Lucien Claes (1923–1994), Belgian wrestler Paul Claes (born 1943), Belgian writer, poet and translator Pierre Claes (1901–1989), Belgian racing cyclist Ronny Claes (born 1957), Belgian racing cyclist Ulrich Klaes, German field hockey player Victor Claes (born 1894), Belgian equestrian Virginie Claes (born 1982), Belgian TV host, Miss Belgium 2006 Willy Claes (born 1938), Belgian politician, Secretary General of NATO 1994–1995 Willy Claes (weightlifter) (1937–2017), Belgian weightlifter Wim Claes (1961–2018), Belgian composer, arranger and music producer Wouter Claes (born 1975), Belgian badminton player
See also Clais