| Mantario | |
| Official Name: | Special Service Area of Mantario |
| Settlement Type: | Special service area |
| Pushpin Map: | CAN SK Chesterfield#Saskatchewan |
| Coordinates: | 51.2623°N -109.6991°W |
| Pushpin Mapsize: | 200 |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Name2: | Saskatchewan |
| Subdivision Type3: | Census division |
| Subdivision Type4: | Rural Municipality |
| Leader Title: | Reeve |
| Leader Name: | Karrie Derouin |
| Leader Title1: | Administrator |
| Leader Name1: | Beverly Dahl |
| Leader Title2: | Governing body |
| Leader Name2: | Chesterfield No. 261 |
| Established Title: | Post office founded |
| Established Date: | March 1, 1912 (closed March 27, 1986) |
| Established Title2: | Incorporated (village) |
| Established Date2: | N/A |
| Established Title3: | Incorporated (town) |
| Established Date3: | N/A |
| Area Total Km2: | 0.78 |
| Population As Of: | 2011 |
| Population Total: | 5 |
| Population Density Km2: | 6.4 |
| Population Density Sq Mi: | 16.6 |
| Timezone: | CST |
| Postal Code Type: | Postal code |
| Postal Code: | S0L 2J0 |
| Area Code: | 306 |
| Blank Name: | Highways |
| Blank Info: | Highway 44 |
| Blank1 Name: | Waterways |
Mantario is a special service area[1] in the Rural Municipality of Chesterfield No. 261 in the Canadian province of Saskatchewan.It held village status prior to June 30, 2007.[2] The population was five people in 2011. The community is located southwest of the town of Kindersley on Highway 44.
Mantario is a portmanteau of Manitoba and Ontario. It was named after two provinces in imitation of nearby Alsask.[3]
In the 2021 Census of Population conducted by Statistics Canada, Mantario had a population of 15 living in 5 of its 7 total private dwellings, a change of from its 2016 population of 5. With a land area of, it had a population density of in 2021.[4]