Macea (Hungarian: Mácsa; German: Matscha) is a commune in Arad County, Romania, composed of two villages, Macea and Sânmartin (Szentmárton). It is located 23 km from Arad and 6 km from Curtici.
According to the last census the population of the commune counts 6169 inhabitants, out of which 85.6% are Romanians, 3.3% Hungarians, 8.3% Roma, 2.2% Germans and 0.6% are of other or undeclared nationalities.
Although the traces of inhabitance on this place are very old, traces from the Neolithic and from the Bronze Age having been found on its territory, Macea was first mentioned in documents only in 1380, while Sânmartin in 1477.
The commune's present-day economy can be characterized by a powerful dynamic force with significant developments in all the sectors present in the commune. Livestock-breeding based on cattle-growing and pig-raising is the main economic branch, due to which food industry is well-developed in the commune.
Tourist sites include the natural reservation called "Arboretul de la Macea" (20,5 ha), the Csernovics Castle - architectural monument belonging to the national patrimony, built in the 19th century, the exhibition room with caricatures, well as the beach and the botanical garden.