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 (Ohio), located within Buckeye Lake, Fairfield County

See also
Ronde Island, Grenada
List of islands by name (R)