| Lake Nicolet | |
|---|---|
| Lac Nicolet (French) | |
 Lake Nicolet seen from Gosford street, near Saints-Martyrs-Canadiens | |
  Lake Nicolet | |
| Location | Canada, Quebec, Centre-du-Québec, Arthabaska Regional County Municipality |
| Coordinates | 45°49′48″N 71°33′37″W / 45.83°N 71.56028°W |
| Primary outflows | Nicolet River |
| Catchment area | 9.4 kilometres (5.84 mi) |
| Max. length | 5.1 kilometres (3.2 mi) |
| Max. width | 1.7 kilometres (1.1 mi) |
| Surface area | 4.1 kilometres (2.55 mi) |
| Average depth | 17 metres (56 ft) |
| Max. depth | 41 metres (135 ft) |
| Surface elevation | 350 metres (1,150 ft) |
| Frozen | Mid December to end of April |
| Islands | Boulanger, Linke, L'Heureux, Baril, Michel-Rheault, Rolland. |
Lake Nicolet (in French: lac Nicolet) is located 50 km south of Victoriaville, in the municipality of Saints-Martyrs-Canadiens, in Arthabaska Regional County Municipality (MRC), in administrative region of Centre-du-Québec, Canada.
Lake Nicolet is the source of the Nicolet River which flows 137 kilometres (85 mi) to the southeast shore of lake Saint-Pierre, in Nicolet. The latest is crossed through the North-East by the St. Lawrence River.
This lake is surrounded by Chemin du Lac-Nicolet (north-west side) and Chemin Gosford-Sud (south-east side).