Second place was awarded to Grace Bay in the Turks and Caicos and Australia's Whitehaven Beach, on Whitsunday Island, came in third with its seven-kilometre stretch of white silica sand.
But none of New Zealand's revered beaches featured on the list, which included beaches in Brazil, Spain, Puerto Rico, Bermuda and even Wales.
Rhossili Bay in Swansea, Wales was the wild card winner, defeating more exotic locations to edge its way into the top 10.
"We are delighted, but not surprised, that Rhossili Bay has been acknowledged ... We hope that many more visitors continue to enjoy its outstanding natural beauty," David Phillips, leader of the City and County of Swansea, said in a statement.
The world's top 10 beaches
1. Rabbit Beach, Sicily - Italy
2. Grace Bay, Providenciales - Turks and Caicos
3. Whitehaven Beach, Queensland - Australia
4. Baia do Sancho, Fernando de Noronha - Brazil
5. Flamenco Beach (Playa Flamenco), Culebra - Puerto Rico
6. Playa de las Catedrales, Ribadeo - Spain
7. Lopes Mendes Beach, Ilha Grande - Brazil
8. Horseshoe Bay Beach, Southampton Parish - Bermuda
9. Eagle Beach - Aruba
10. Rhossili Bay, Rhossili, Swansea - Wales, UK