| Coroisânmărtin | |
| Other Name: | Kóródszentmárton |
| Type: | commune |
| County: | Mureș |
| Population Total: | auto |
| Leader Name: | Nicolae Comerzan[1] |
| Term: | 2020 - 2024 |
| Leader Party: | PNL |
| Coordinates: | 46.4°N 60°W |
| Area Total: | 27.39 |
Coroisânmărtin (Hungarian: Kóródszentmárton, Hungarian pronunciation: NaNo) is a commune in Mureș County, Transylvania, Romania. It is composed of four villages: Coroi (Kóród), Coroisânmărtin, Odrihei (Vámosudvarhely) and Șoimuș (Küküllősolymos).
The commune is located in the south-central part of the county, on the banks of the Târnava Mică River, at a distance of from Târnăveni and from the county seat, Târgu Mureș.
According to the 2011 census, there were 1,447 living in Coroisânmărtin at the time. Of this population, 56.05% were ethnic Romanians, 22.94% were ethnic Hungarians, and 15.34% were ethnic Romani.