| Lake Nicolet | |
| Location: | Canada, Quebec, Centre-du-Québec, Arthabaska Regional County Municipality |
| Coordinates: | 45.83°N -71.5603°W |
| Outflow: | Nicolet River |
| Catchment: | 9.4km (05.8miles) |
| Area: | 4.1km (02.5miles) |
| Frozen: | Mid December to end of April |
| Islands: | Boulanger, Linke, L'Heureux, Baril, Michel-Rheault, Rolland. |
| Pushpin Map: | Quebec |
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 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).
Lake Nicolet is long and wide, resembling a misshapen crescent surrounded by mountains. It has seven islands: Boulanger, Baril, Linke, L'Heureux, à Michel-Rheault, Rolland and a little unnamed island. The main mountain peaks around the lake are: Brûlé Mountain at on the south side of the bay leading to the mouth of the lake; a vertex on the west side and another on the southeast side . This lake has a hundred chalets all around.[1]
The toponym "Lac Nicolet" was made official on December 5, 1968, at the Commission de toponymie du Québec.[2]