Lac Fissiau is a Lake located in Lac-Legendre; Matawinie, Quebec and has an elevation of 596 meters.

• Latitude: 46° 48' 37'' North   (decimal: 46.8102778)
• Longitude: 74° 19' 36'' West   (decimal: -74.3266667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 596 meters
• Location: Lac-Legendre; Matawinie
• Atlas of Canada Locator Map: Lac Fissiau
• GPS Coordinate Locator Map: Lac Fissiau Lat/Long