Sar Asiab-e Yusefi (Persian: سراسياب يوسفي)[a] is a city in, and the capital of, Sar Asiab-e Yusefi District[b] of Bahmai County, Kohgiluyeh and Boyer-Ahmad province, Iran.

[5] As a village, it was the capital of Sar Asiab-e Yusefi Rural District[6] until its capital was transferred to the village of Deh-e Bonar-e Yusefi.

[4] At the time of the 2006 National Census, Sar Asiab-e Yusefi's population was 1,015 in 191 households, when it was a village in Sar Asiab-e Yusefi Rural District.

[8] The 2016 census measured the population of the village as 984 people in 274 households.

[2] After the census, Sar Asiab-e Yusefi was elevated to the status of a city.