U.D. Rio Maior
| Full name | União Desportiva Rio Maior | ||
|---|---|---|---|
| Founded | 1945 | ||
| Dissolved | 2010 | ||
| Ground | Municipal de Rio Maior | ||
| Capacity | 7,000 | ||
| 2008–09 | Terceira Divisão Série E, 3rd | ||
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União Desportiva Rio Maior was a Portuguese association football club, founded in Rio Maior in 1945. It was dissolved in 2010 and last competed in the Terceira Divisão.