| Republican Union Party | |
| Native Name: | Partido de Unión Republicana |
| Leader: | Nicolás Salmerón y Alonso |
| Successor: | UFNR Republican Party RPR |
| Ideology: | Progressivism Republicanism |
| Position: | Centre-left |
| Country: | Spain |
The Republican Union Party (Spanish; Castilian: Partido de Unión Republicana, PUR) was a Spanish republican party founded in 1903 by Nicolás Salmerón y Alonso.
It participated in the 1903, 1905 and 1907 general elections. It was dissolved in 1910, being succeeded by the Republican Nationalist Federal Union.[1]