| Estevan-Big Muddy | |
| Province: | Saskatchewan |
| Prov-Status: | active |
| Prov-Rep: | Lori Carr |
| Prov-Rep-Party: | Saskatchewan |
| Demo-Census-Date: | 2001 |
| Prov-Created: | 1974 |
| Prov-Election-Last: | 2020 |
| Demo-Electors: | 10,148 |
| Prov-Election-First: | 1975 |
| Demo-Cd: | Division 1, 2 |
| Demo-Csd: | Estevan |
Estevan-Big Muddy is a provincial electoral district for the Legislative Assembly of Saskatchewan, Canada.
The city of Estevan (pop. 10,084) is the largest centre in the constituency. Known as Saskatchewan's "Energy City", the area has rich deposits of oil, natural gas, and lignite coal. Provincial Highways 39 and 47 connect Estevan with the American state of North Dakota.
Smaller centres in the riding include the towns of Bienfait, Midale and Radville; and the villages of North Portal, Goodwater, Macoun, Oungre, Halbrite, Torquay and Lake Alma.
For the 2024 general election, the riding gained most of the Big Muddy Badlands area from Weyburn-Big Muddy, and therefore was renamed from Estevan to Estevan-Big Muddy.
| Legislature | Years | Member | Party | ||
|---|---|---|---|---|---|
| 18th | 1975–1978 | Robert Austin Larter | Progressive Conservative | ||
| 19th | 1978–1980 | ||||
| 1980–1982 | John Otho Chapman | New Democrat | |||
| 20th | 1982–1986 | Grant Devine | Progressive Conservative | ||
| 21st | 1986–1991 | ||||
| 22nd | 1991–1995 | ||||
| 23rd | 1995–1999 | Larry Ward | New Democrat | ||
| 24th | 1999–2003 | Doreen Eagles | Saskatchewan Party | ||
| 25th | 2003–2007 | ||||
| 26th | 2007–2011 | ||||
| 27th | 2011–2016 | ||||
| 28th | 2016–2020 | Lori Carr | |||
| 29th | 2020–present | ||||
|-|NDP|Blair Schoenfeld|align="right"|1,045|align="right"|17.27|align="right"|-1.52|- bgcolor="white"!align="left" colspan=3|Total!align="right"|6,052!align="right"|100.00!align="right"|
|-|NDP|Morris Johnson|align="right"|1,335|align="right"|18.79|align="right"|-12.60|Liberal|Tim Seipp|align="right"|910|align="right"|12.81|align="right"|-3.15|- bgcolor="white"!align="left" colspan=3|Total!align="right"|7,106!align="right"|100.00!align="right"|
|-|NDP|David Pattyson|align="right"|2,154|align="right"|31.39|align="right"|+11.94|Liberal|Tim Seipp|align="right"|1,095|align="right"|15.96|align="right"|-16.01|- bgcolor="white"!align="left" colspan=3|Total!align="right"|6,862!align="right"|100.00!align="right"|
|-|Liberal|Neil Collins|align="right"|2,440|align="right"|31.97|align="right"|-0.50|NDP|Larry Ward|align="right"|1,484|align="right"|19.45|align="right"|-16.16|- bgcolor="white"!align="left" colspan=3|Total!align="right"|7,631!align="right"|100.00!align="right"|
|-| style="width: 130px" |NDP|Larry Ward|align="right"|2,641|align="right"|35.61|align="right"|–|Liberal|Austin Gerein|align="right"|2,408|align="right"|32.47|align="right"|–|Prog. Conservative|David Davis|align="right"|2,367|align="right"|31.92|align="right"|–|- bgcolor="white"!align="left" colspan=3|Total!align="right"|7,416!align="right"|100.00!align="right"|