The Florida dealer also won the Regional Dealer of the Year award and the Global Aftersales Dealer award.
Rolls-Royce Motor Cars Rancho Mirage took home the Global Provenance award.
"The awards recognize exceptional customer service and this was demonstrated by our successful dealers in each of the categories, with Rolls-Royce Motor Cars Palm Beach setting a new global standard," said Torsten Muller-Otvos, Rolls-Royce Motor Cars CEO, in a statement.
The awards will be presented formally in May at the company's World Dealer Conference.
Edmunds says: Congratulations to Rolls-Royce Motor Cars Palm Beach on this impressive achievement.