Summit Lake may refer to several places:

• Summit Lake (Saskatchewan), a lake in Saskatchewan
• Summit Lake (Alberta), a lake in Alberta
• List of lakes named Summit Lake in British Columbia (includes some details about several other Summit Lakes in British Columbia, in addition to those listed immediately below)
  • Alta Lake (British Columbia) or Summit Lake
  • Gates Lake or Summit Lake, Southern Interior
  • Summit Lake (Crooked River), Central Interior
  • Summit Lake (Vancouver Island)
• Ontario
  • Algoma District
    • Summit Lake (Goudreau, Ontario)
    • Summit Lake (Josephine Creek)
    • Summit Lake (Kabinakagami River)
    • Summit Lake (Lochalsh River)
  • Summit Lake (Frontenac County)
  • Summit Lake (Kenora District)
  • Summit Lakes (Ontario), Nipissing District
  • Summit Lake (Rainy River District)
  • Summit Lake (Sudbury District)
  • Summit Lake (Thunder Bay District)
  • Summit Lake (Timiskaming District)
• Nunavut
  • Summit Lake (Akshayuk Pass, Auyuittuq National Park)

• Summit Lake (Alaska), several lakes, including:
  • Summit Lake (Chugach National Forest)
  • Summit Lake (Paxson, Alaska)
  • Summit Lake (Willow, Alaska)
• Summit Lake (Reading Peak, Shasta County), California
• Summit Lake (Clear Creek County, Colorado)
• Summit Lake (Kandiyohi County, Minnesota)
• Summit Lake (Murray County, Minnesota)
• Summit Lake (Edmeston, Otsego County, New York)
• Summit Lake (Springfield, Otsego County, New York)
• Summit Lake (Oregon), several lakes
• Summit Lake (Washington)
• Summit Lake (West Virginia)
• Summit Lake (Langlade County, Wisconsin)

• Summit Lake, British Columbia
• Summit Lake, Maryland
• Summit Lake, Minnesota
• Summit Lake, Wisconsin
• Summit Lake camp

• Lake Summit, Winter Haven, Florida
• Summit Lake Park, Colorado
• Summit Lake Provincial Park, British Columbia
• Summit Lake Ski Area, Nakusp, British Columbia
• Summit Lake State Park, Henry County, Indiana