427 (2016 population: 911) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

[3] Prior to incorporation in 1912, it was originally Local Improvement District 21-M-2.

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

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

[4] The reeve of the RM is Ian Allan while its administrator is Dawn Marleau.