| Marçà | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Catalonia |
| Pushpin Map Caption: | Location in Catalonia |
| Coordinates: | 41.1286°N 0.8036°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Tarragona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Priorat |
| Leader Title: | mayor |
| Leader Name: | Josep Maria Piqué Castellnou (2019) |
| Area Footnotes: | [1] |
| Area Total Km2: | 16.1 |
| Elevation M: | 315 |
| Population As Of: | 2021 |
| Population Total: | 612 |
| Population Density Km2: | auto |
| Population Demonym: | Marçalenc, marçalenca |
| Postal Code: | 43775 |
Marçà (in Catalan; Valencian pronounced as /maɾˈsa/) is a municipality in the comarca of Priorat, Tarragona Province, Catalonia, Spain.
In medieval times, after the area had been reconquered from the Saracens, the town became part of the Barony of Entença.
The now ruined Sant Marçal monastery was founded in 1611. It was closed down due to the Ecclesiastical Confiscations of Mendizábal in 1835 during Isabella II of Spain's rule. The Desamortización or secularization of the place brought monastic life in the monastery to an end. Despite having lost almost half of its population since 1900, nowadays Marçà is the third most important town in the Priorat comarca.
The 18th century Santa Maria church.