Beyza County (Persian: شهرستان بیضا) is a county in Fars Province, Iran. At the 2006 census, its population was 36,694, in 8,565 families. The county has one city: Beyza. The county has three rural districts (dehestan): Banesh Rural District, Beyza Rural District, and Kushk-e Hezar Rural District. The Beyza County was established on 2018 in Fars province.