Lac Octave is a Lake located in Havre-Saint-Pierre; Minganie, Quebec and has an elevation of 166 meters.

• Latitude: 50° 35' 44'' North   (decimal: 50.5955556)
• Longitude: 63° 21' 57'' West   (decimal: -63.3658333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 166 meters
• Location: Havre-Saint-Pierre; Minganie
• Atlas of Canada Locator Map: Lac Octave
• GPS Coordinate Locator Map: Lac Octave Lat/Long