Certeze (German: Neudorf; Hungarian: Avasújfalu, Hungarian pronunciation: [ˈɒvɒʃuːjfɒlu]) is a commune of 5,646 inhabitants situated in Satu Mare County, Romania. It is composed of three villages: Certeze, Huta-Certeze (Lajosvölgy), and Moișeni (Mózesfalu).

The commune is located in the Țara Oașului ethnographic and historical region, in the northeastern part of Satu Mare County. It lies on the banks of the river Valea Rea and its tributary, the Valea Albă.

Certeze is situated 55 km (34 mi) northeast of the county seat, Satu Mare, on the border with Ukraine. It is crossed by national road DN19 [ro], which starts in Oradea, goes through Satu Mare, and ends in Sighetu Marmației, in the neighboring Maramureș County.