| Settlement Type: | Municipality |
| Official Name: | L'Aleixar |
| Pushpin Map: | Spain Catalonia |
| Pushpin Map Location: | Location in Spain |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Catalonia |
| Subdivision Type2: | Province |
| Subdivision Name2: | Tarragona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Baix Camp |
| Leader Title: | mayor |
| Leader Name: | Antoni Abelló Grau (2015)[1] |
| Area Footnotes: | [2] |
| Area Total Km2: | 26.1 |
| Elevation M: | 262 |
| Population Density Km2: | auto |
| Coordinates: | 41.2031°N 1.0475°W |
| Population Demonyms: | Aleixarenc, aleixarenca |
| Postal Code: | 43381 |
L'Aleixar (in Catalan; Valencian pronounced as /lələjˈʃa/) is a municipality in the comarca of Baix Camp, in the province of Tarragona, Catalonia, Spain.
The Serra de la Mussara, a subrange of the Prades Mountains rises north of the town. The church is dedicated to Saint Martin.