| Clubname: | U.D. Santarém |
| Fullname: | União Desportiva de Santarém |
| Stadium: | Campo Chã das Padeiras |
| Capacity: | 10.550 |
| Owntitle: | President |
| Owner: | Pedro Patrício |
| Mgrtitle: | Head coach |
| Manager: | Carlos Fernandes |
| League: | Liga 3 |
| Season: | 2023–24 |
| Position: | Campeonato de Portugal, 1st (promoted) |
| Website: | https://uds.pt |
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União Desportiva de Santarém is a Portuguese football club based in Santarém in central Portugal. They play in the 3rd national division.
The club was founded on 23 August 1969[1] and plays at the 5,000 capacity Campo Chã das Padeiras stadium. The club has participated in the Portuguese Second Division in the past, but has spent most of its history in the lower levels of Portuguese football.[2]