Frédéric Claessens
| Personal information | |
|---|---|
| Full name | Frederik Jozef "Frédéric" Claessens |
| Born | 9 February 1896 Niel, Belgium |
| Died | 9 December 1931 (aged 35) |
Frédéric Claessens (9 February 1896 – 9 December 1931) was a Belgian cyclist. He competed in the men's tandem event at the 1920 Summer Olympics.