Wilson Lake is a 308 acres (0.5 sq mi; 1.2 km2) waterbody located in York County, Maine in the United States.

Wilson Lake is classified as "good" under the Maine Department of Environmental Protection water quality parameters.

The Wilson Lake shoreline is primarily composed of low density residential houses and camps (63%).

From this data, the median total phosphorus (TP) concentration in 2008 was 6.5 parts per billion (ppb) and mean secchi disk transparency was 5.9 m (19.4 ft).

The Wilson Lake Association was established to maintain a program that will reverse any trend of degrading water quality.