| Birth Date: | 17 February 1954 |
| Birth Place: | Hilversum, the Netherlands |
| Height: | 1.78m (05.84feet) |
| Weight: | 69kg (152lb) |
| Sport: | Swimming |
| Club: | ZV Naarden |
| Show-Medals: | yes |
Anton ("Ton") Willem van Klooster (born 17 February 1954) is a former freestyle swimmer from the Netherlands. He competed at the 1972 Summer Olympics and was eliminated in the heats of the 400 m and 1500 m freestyle events. Twenty years later he was the head coach of the Dutch Olympic Swim Team at the 1992 Summer Olympics in Barcelona, Spain.