Miercurea Nirajului is a town in Mureș County, Romania. It lies in the Székely Land, an ethno-cultural region in eastern Transylvania. The following seven villages are administered by the town: Beu (Székelybő), Dumitreștii (Demeterfalva), Lăureni (Kisszentlőrinc), Moșuni (Székelymoson), Șardu Nirajului (Székelysárd), Tâmpa (Székelytompa), and Veța (Vece).