The Rural Municipality of St. Peter No. 369 (2016 population: ) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 15 and Division No. 5.
The RM of St. Peter No. 369 was largely settled during the early 20th century by German-American Roman Catholics from Stearns County, Minnesota.
St. Peter's Abbey began in 1903 with the arrival of seven Benedictine monks under the obedience of Peter Engel O.S.B. the abbot of Saint John's Abbey in Collegeville, Minnesota. The monks established parishes and were able to serve local congregations due to their knowledge of the distinctive Stearns County dialect of the German language.
St. Peter was incorporated as a rural municipality on December 11, 1911.
The following urban municipalities are surrounded by the RM.
In the 2021 Census of Population conducted by Statistics Canada, the RM of St. Peter No. 369 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.
In the 2016 Census of Population, the RM of St. Peter No. 369 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of , it had a population density of in 2016.
The RM of St. Peter No. 369 is governed by an elected municipal council and an appointed administrator that meets on the second Thursday of every month. The reeve of the RM is Lyle Dosch while its administrator is Angie Peake. The RM's office is located in Annaheim.