Round Island

Round Island or île Ronde may refer to:

Australia

 * Round Island (Queensland), Frankland Islands
 * Round Island (Tasmania), Hogan Group, northern Bass Strait

Canada

 * Round Island, Nova Scotia
 * Round Island (Nunavut) (two: Coutts Inlet, Baffin Bay, and Cross Bay, Chesterfield Inlet; there is also a Round Rocks Island)
 * Île Ronde (Îles Laval), in the Rivière des Prairies, Quebec

China

 * Robert Island (Paracel Islands), also known as Round Island, occupied by China (PRC) and also claimed by Taiwan (ROC) and Vietnam

France

 * île Ronde, Brest, in the roadstead of Brest

Hong Kong

 * Round Island or Pak Sha Chau (白沙洲), in North District
 * Round Island, Hong Kong or Ngan Chau (銀洲), in Southern District

Mauritius

 * île Ronde, Mauritius, an islet on the coast of Mauritius
 * Bolyeriidae, also known as the Round Island boas
 * Round Island day gecko

Seychelles

 * Round Island, Mahé
 * Round Island, Praslin

United Kingdom

 * Round Island (Dorset)
 * Round Island, County Down, a townland in County Down, Northern Ireland
 * Round Island, County Fermanagh, a townland in County Fermanagh, Northern Ireland
 * Round Island, Isles of Scilly, the location of Round Island Light, Cornwall

United States

 * Round Island (Aleutian Islands), Alaska
 * Round Island (Nanticoke River) in Maryland; see List of islands of Maryland
 * Bumpkin Island, Massachusetts, also known as Round Island
 * Round Island (Michigan)
 * Round Island Light (Michigan), a lighthouse on the above island
 * Round Island (Detroit River), a different island in southeast Michigan
 * Round Island (Mississippi)
 * Iona Island (New York), part of which is known as Round Island
 * Round Island, in Lake Bonaparte (New York)
 * Round Island (Ohio), located within Buckeye Lake, Fairfield County