Petit lac Mach is a Lake located in Baie-d'Hudson; Kativik, Quebec.

• Latitude: 55° 24' 44'' North   (decimal: 55.4122222)
• Longitude: 77° 7' 35'' West   (decimal: -77.1263889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-d'Hudson; Kativik
• Atlas of Canada Locator Map: Petit lac Mach
• GPS Coordinate Locator Map: Petit lac Mach Lat/Long