Rona de Sus (Hungarian: Felsőróna; German: Oberrohnen; Ukrainian: Bишня Рівня; Rusyn: Вишня Руна, Yiddish: אויבר-רינה, romanized: Ober Rina) is a commune in Maramureș County, Maramureș, Romania. It is composed of two villages: Coștiui (Rónaszék; Rohnen; Коштіль) and Rona de Sus.

The commune is located in a hilly area in the northern part of the county, about 6 km (3.7 mi) from the river Tisza and the Ukrainian border. The river Rona, a right tributary of the Iza, flows through the commune. The nearest city is Sighetu Marmației, 13 km (8.1 mi) to the northwest; the county seat, Baia Mare, is 70 km (43 mi) to the southwest. Rona de Sus is crossed by national road DN18 [ro; de], which starts in Baia Mare, runs through Sighetu Marmației and Borșa, and ends in Iacobeni, Suceava.

Historical population

Year	Pop.	±%
1880	3,387	—
1900	4,436	+31.0%
1910	4,631	+4.4%
1930	4,154	−10.3%
1956	4,331	+4.3%
1977	5,124	+18.3%
1992	4,982	−2.8%
2002	4,698	−5.7%
2011	3,855	−17.9%
2021	4,171	+8.2%
Source: Census data

At the 2021 census, Rona de Sus had a population of 4,171, of which 54.21% were Romanians, 34.6% Ukrainians, and 5.49% Hungarians. At the 2011 census, there were 3,855 inhabitants, of which 83.35% were Ukrainians, 8.12% Hungarians, and 5% Romanians. At the 2002 census, the commune had a population of 4,698, of which 72.9% were Ukrainian Orthodox, 10.8% stated they belonged to another religion, 8.6% were Roman Catholic, and 4.8% Greek-Catholic.

• Nicolae-Miroslav Petrețchi [ro] (born 1985), politician, president of the Union of the Ukrainians of Romania party