United States

• Duck Lake (California), a lake in John Muir Wilderness
  John Muir Wilderness
  The John Muir Wilderness is a wilderness area that extends along the crest of the Sierra Nevada of California, USA for , in the Inyo and Sierra National Forests. Established in 1964 by the Wilderness Act and named for naturalist John Muir, it contains...
  
  , California
• Duck Lake (Illinois), a lake in Illinois
• Duck Lake (Minnesota), a lake in Blue Earth County, Minnesota
• Duck Lake (Iowa)
  Duck Lake (Iowa)
  Duck Lake is a small lake in the wetlands on the western shore of the Upper Mississippi River, just north of Lansing, Iowa, in northeastern Allamakee County. It is a part of the New Albin-Big Lake Wildlife Management Area, which itself is surrounded by the Upper Mississippi River National Wildlife...
  
  , a lake in Allamakee County, Iowa
• Duck Lake, Michigan, an unincorporated community and lake in Clarence Township, Michigan of Calhoun County

Canada

• Duck Lake (British Columbia), any one of several lakes in British Columbia
• Duck Lake, Halifax, a lake in Nova Scotia
• Duck Lake No. 463, Saskatchewan
  Duck Lake No. 463, Saskatchewan
  Duck Lake No. 463 is a rural municipality in the Canadian province of Saskatchewan, located in the Census Division 15. The seat of the municipality is located in the Village of Duck Lake.-Demographics:...
  
  , a rural municipality in Saskatchewan.
• Duck Lake, Saskatchewan, a town in Saskatchewan
• Duck Lake (electoral district), a former electoral district in Saskatchewan
• Little Duck Lake, a lake in Manitoba
• Duck Lake 7, properly known as Duck Lake Indian Reserve No. 7, an Indian Reserve just north of Kelowna, British Columbia