| Birth Date: | 10 April 1919 |
| Birth Place: | Rotterdam, the Netherlands |
| Death Date: | 21 August 1958 (aged 39) |
| Death Place: | Parkdale, Victoria, Australia |
| Sport: | Swimming--> |
| Club: | RDZ, Rotterdam |
| Show-Medals: | yes |
Anna Petronella "Ans or Annie" Timmermans (10 April 1919 – 21 August 1958) was a Dutch swimmer who won a gold medal in the 4 × 100 m freestyle relay at the 1934 European Championships. Two years later she competed in the 400 m freestyle at the 1936 Olympics, but failed to reach the final.[1]