Fort Abbas () is a tehsil located in Bahawalnagar District, Punjab, Pakistan.
The area currently encompassed by Fort Abbas Tehsil was a thriving center of ancient Hakra civilization. A survey of the Cholistan region from 1947 to 1977 dated Hakra ceramics to 5000 BCE.
Fort Abbas Tehsil has an area of 2,536 km<sup>2</sup>.
As of the 2023 census, Fort Abbas Tehsil had a population of 510,253. According to the 2017 Census of Pakistan, there were 422,768 people living in Fort Abbas Tehsil in 67,121 households. Its population in 1998 was 285,596.