Sister or Sisters Island or Islands may refer to several individual islands or island groups:

Antarctic

• The Sisters, a pair of Antarctic islands consisting of Gertrude Rock and Rose Rock

Australia

• Sisters Islands (Queensland)
• Sisters Island (Tasmania), north-west Tasmania
• Sisters Island Group, Tasmania, Furneaux Group
  • Inner Sister Island
  • Outer Sister Island
  • Shag Reef

Canada

• Sisters Islands (Nunavut), Canada
• East Sister Island, Lake Erie, Ontario

Cayman Islands

• Little Cayman
• Cayman Brac

India

• The Sisters (Andaman), two islands in the Duncan Passage, Andaman Islands, India
  • East Sister Island (Andaman)
  • West Sister Island (Andaman)

New Zealand

• The Sisters/Rangitatahi, Chatham Islands

Singapore

• Sisters' Islands

United States

• Sister Islands (Wisconsin)
• The Sisters (California)
• Middle Sister Island, Lake Erie, Ohio
• West Sister Island, Lake Erie, Ohio
• Sisters Island, Michigan, in Monroe County
• A small group of islands just northwest of Grand Isle (island) in Lake Champlain

See also

• Three Sisters Islands (disambiguation)