| Type: | municipality |
| Official Name: | Montemor-o-Novo |
| Flag Border: | no |
| Coordinates: | 38.65°N -21°W |
| Region: | Alentejo |
| Cim: | Alentejo Central |
| District: | Évora |
| Parishes: | 7 |
| Leader Party: | PS |
| Leader Name: | Olímpio Manuel Vidigal Galvão |
| Area Total Km2: | 1232.97 |
| Population Total: | 17,437 |
| Population As Of: | 2011 |
| Holiday: | Saint John of God March 8 |
Montemor-o-Novo (pronounced as /pt/) is a municipality in the District of Évora in Portugal. The population in 2011 was 17,437,[1] in an area of 1232.97 km2.[2] The city itself had a population of 8,928 in 2001.[3]
The present mayor is Olímpio Manuel Vidigal Galvão, elected in 2021 by the Socialist Party. The municipal holiday is March 8, after Saint John of God, a 16th-century saint, who was born in Montemor-o-Novo.
Administratively, the municipality is divided into 7 civil parishes (freguesias):[4]