Petit lac Wellie is a Lake located in Lac-Nilgaut; Pontiac, Quebec.

• Latitude: 46° 28' 52'' North   (decimal: 46.4811694)
• Longitude: 77° 6' 56'' West   (decimal: -77.1155604)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Petit lac Wellie
• GPS Coordinate Locator Map: Petit lac Wellie Lat/Long