| Ellen van der Weijden-Bast | |
| Fullname: | Eleonora Johanna van der Weijden-Bast |
| Nationality: |  Netherlands |
| Birth Date: | 29 August 1971 |
| Birth Place: | Gouda, the Netherlands |
| Height: | 1.79m (05.87feet) |
| Weight: | 70kg (150lb) |
| Clubs1: | Gouwestaete, Waddinxveen |
| Nationalyears1: | ?-? |
| Nationalteam1: | Netherlands |
Eleonora Johanna "Ellen" van der Weijden-Bast (born 29 August 1971) is a Dutch former water polo player. She was a member of the Netherlands women's national water polo team.
She competed with the team at the 2000 Summer Olympics and also at World Championships including the 1998 World Aquatics Championships.[1]