| Type: | commune |
| County: | Satu Mare |
| Supur | |
| Other Name: | Alsószopor |
| Leader Name: | Sergiu Petrică Crișan |
| Leader Party: | PNL |
| Leader Term: | 2020 - 2024 |
| Coordinates: | 47.4667°N 70°W |
| Elevation: | 154 |
| Area Total: | 121.58 |
| Population Total: | auto |
| Postal Code: | 447300 |
| Area Code: | (+40) 02 61 |
Supur (Hungarian: Alsószopor; Hungarian pronunciation: NaNa) is a commune of 3,990 inhabitants situated in Satu Mare County, Crișana, Romania. Its administrative centre is Supuru de Jos, and the commune is composed of seven villages: Dobra (Dobra), Giorocuta (Girókuta), Hurezu Mare (Nántű), Racova(Rákosterebes), Sechereșa (Szekerestanya), Supuru de Jos (Alsószopor), and Supuru de Sus (Felsőszopor).
The commune is located in the southern part of the county, on the border with Sălaj County. It lies at an altitude of, on the banks of the river Crasna, and its right tributary, the river Maja.
The national road (part of European route E81) connects Supur to the county seat, Satu Mare, about to the north.
At the 2002 census, the commune had a population of 4,677, of which 63.99% were Romanians, 28.65% Hungarians and 7.01% Roma;[1] according to mother tongue, 71.01% of the population spoke Romanian, while 28.60% spoke Hungarian as their first language. At the 2011 census, there were 4,231 inhabitants, of which 60.74% Romanians, 25.74% Hungarians, and 10.66% Roma. At the 2021 census, Supur had a population of 3,990, of which 69.27% were Romanians, 22.38% Hungarians, and 3.51% Roma.[2]