11 (2016 population: 252) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

Located in the south-central portion of the province, it is adjacent to the United States boundary, neighbouring Daniels County in Montana.

In the 2021 Census of Population conducted by Statistics Canada, the RM of Hart Butte No.

11 is governed by an elected municipal council and an appointed administrator that meets on the second Thursday of every month.

[3] The reeve of the RM is Craig Eger while its administrator is Leanne Totton.