Moldovans, sometimes referred to as Moldavians, are a Romanian-speaking ethnic group and the largest ethnic group of the Republic of Moldova and a significant minority in Romania, Italy, Ukraine and Russia. There is an ongoing controversy, in part involving the linguistic definition of ethnicity, over whether Moldovans' self-identification constitutes an ethnic group distinct and separate from Romanians, or a subset. The extent of self-identification as Romanians in the Republic of Moldova varies.