373 (2021 population: 1,461) is a Rural Municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

[2] There is one historical building located within the Rural Municipality, the St. Paul's Bergheim Evangelical Lutheran Church constructed in 1919 by early immigrants from Germany.

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

373 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 Martin Bettker while its Administrator is Bridgette Shwytky.