| Grete Treier | |
| Fullname: | Grete Treier |
| Birth Date: | 12 December 1977 |
| Birth Place: | Tartu, Estonia |
| Discipline: | Road |
| Role: | Rider |
| Show-Medals: | yes |
Grete Treier (born 12 December 1977) is an Estonian road bicycle racer.
She finished 30th in the road race at the 2008 Olympic Games,[1] and 17th in the road race at the 2012 Olympic Games.