| Alliance of the Left | |
| Native Name: | Alianza de las Izquierdas |
| Leader: | Melquíades Álvarez Álvaro de Albornoz |
| Predecessor: | CRS |
| Successor: | CRS |
| Ideology: | Republicanism Progressivism Federalism Radicalism Socialism |
| Position: | Centre-left to Left-wing |
| Country: | Spain |
The Alliance of the Left (Spanish; Castilian: Alianza de las Izquierdas, AI) was a Spanish electoral coalition created ahead of the 1918 general election.[1]