| Thamar Zweistra | |
| Fullname: | Thamar Zweistra |
| Nationality: | Dutch |
| Birth Date: | 3 December 1982 |
| Birth Place: | Dordrecht, Netherlands |
| Sport: | Equestrian |
| Coach: | Leunus van Lieren |
| Worlds: | 2022 FEI World Championships |
Thamar Zweistra (born 3 December 1982 in Dordrecht, Netherlands) is a Dutch dressage rider. She competed at the 2022 FEI World Championships in Herning, where she placed 20th in the individual dressage competition, and 5th with the Dutch team.[1] In 2022 Zweistra also competed in the World Cup Finals in Leipzig, finishing 11th in the individual ranking. She was also on the longlist for the 2020 Olympic Games in Tokyo.[2]
Zweistra was very successful as a young rider and represented The Netherlands at both the Junior and Young Riders European championships, where she won several team medals. [3]