Muscel County is a former first-order administrative district of Romania. It was located in the southern central part of Greater Romania, in the northwestern part of the historic region of Muntenia. Its territory is now mostly part of Argeș County, while some communes (Malu cu Flori, Pucheni and Văleni-Dâmbovița) now belong to Dâmbovița County. The county seat was Câmpulung. The county was bordered on the west by Argeș County, to the north by the counties of Făgăraș and Brașov, and to the east by Dâmbovița County.