Rona de Sus

Rona de Sus (; ; ) is a commune in Maramureș County, Maramureș, Romania. It is composed of two villages: Coștiui ("Rónaszék"; "Rohnen"; Коштіль) and Rona de Sus.
At the 2011 census, 86.4% of inhabitants were Ukrainians, 8.5% Hungarians and 5% Romanians. At the 2002 census, 72.9% were Ukrainian Orthodox, 10.8% stated they belonged to another religion, 8.6% were Roman Catholic and 4.8% Greek-Catholic.