| Gull Lake No. 139 | |
| Official Name: | Rural Municipality of Gull Lake No. 139 |
| Settlement Type: | Rural municipality |
| Image Map1: | SK RM 139 Gull Lake.svg |
| Mapsize1: | 200 |
| Map Caption1: | Location of the RM of Gull Lake No. 139 in Saskatchewan |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 8 |
| Subdivision Type4: | division |
| Subdivision Name4: | 3 |
| Subdivision Type5: | Federal riding |
| Subdivision Type6: | Provincial riding |
| Government Footnotes: | [1] |
| Leader Title: | Reeve |
| Leader Name: | Elizabeth Kramer |
| Leader Title1: | Governing body |
| Leader Name1: | RM of Gull Lake No. 139 Council |
| Leader Title2: | Administrator |
| Leader Name2: | Jeanette Kerr |
| Leader Title3: | Office location |
| Leader Name3: | Gull Lake |
| Established Title: | Formed |
| Established Title2: | Formed |
| Established Date2: | January 1, 1913 |
| Established Title3: | Name change |
| Established Title4: | Name change |
| Established Title5: | Amalgamated |
| Area Footnotes: | (2016) |
| Area Land Km2: | 836.41 |
| Population As Of: | 2016 |
| Population Total: | 201 |
| Population Density Km2: | 0.2 |
| Timezone: | CST |
| Timezone Dst: | CST |
| Coordinates: | 50.149°N -108.661°W[2] |
| Postal Code Type: | Postal code |
| Area Code: | 306 and 639 |
| Blank Name: | Highway(s) |
| Blank1 Name: | Railway(s) |
| Blank2 Name: | Waterway(s) |
The Rural Municipality of Gull Lake No. 139 (2016 population:) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 8 and Division No. 3. It is located in the southwest portion of the province.
The RM of Gull Lake No. 139 incorporated as a rural municipality on January 1, 1913.[3]
In the 2021 Census of Population conducted by Statistics Canada, the RM of Gull Lake No. 139 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 828.48km2, it had a population density of in 2021.[4]
In the 2016 Census of Population, the RM of Gull Lake No. 139 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of 836.41km2, it had a population density of in 2016.[5]
The following urban municipalities are surrounded by the RM.
The RM of Gull Lake No. 139 is governed by an elected municipal council and an appointed administrator that meets on the second Tuesday of every month.[1] The reeve of the RM is Elizabeth Kramer while its administrator is Jeanette Kerr.[1] The RM's office is located in Gull Lake.[1]