The Ukrainians of Romania (Ukrainian: Українці Румунії, romanized: Ukrayintsi Rumuniyi, Romanian: Ucrainenii din România) are the third-largest ethnic minority in Romania. According to the 2011 Romanian census they number 51,703 people, making up 0.3% of the total population. According to the 2021 Romanian census, there were 45,835 people who identified themselves officially as Ukrainians (0.24%), and 40,861 who declared that their language was Ukrainian. Ukrainians claim that the number is actually 250,000–300,000. Ukrainians mainly live in northern Romania, in areas close to the Ukrainian border. Over 60% of all Romanian Ukrainians live in Maramureș County (31,234), where they make up 6.77% of the population. According to the U.S. Census Bureau, in 2015, there were 345 ethnic Ukrainians born in Romania who lived in the United States of America at that time.
Sizable populations of Ukrainians are also found in Suceava County (5,698 people), Timiș County (5,953), Caraș-Severin County (2,600), Satu Mare County (1,397), Tulcea County (1,317), and Arad County (1,295). Ukrainians make up a majority in seven communes of Maramureș County (Bistra, Bocicoiu Mare, Poienile de sub Munte, Remeți, Repedea, Rona de Sus, and Ruscova) and three in Suceava County (Bălcăuți, Izvoarele Sucevei, and Ulma), as well as in Știuca, Timiș and Copăcele, Caraș-Severin. According to the 2002 census, 79% of Ukrainians were Eastern Orthodox, organized into the Ukrainian Orthodox Vicariate Sighetu Marmației; 10% Pentecostal; 2.8% Greek-Catholic, organized into the Ukrainian Greek-Catholic Vicariate Rădăuți; 2.1% Seventh-day Adventist; 1.2% Lipovan Orthodox and 2.9% stated they belonged to "another religion".