Royale Uccle Sport was a Belgian football club from the municipality of Uccle, Brussels.
It was created in 1901 as Uccle Sport and it registered with the Belgian Football Association in 1905 to receive the matricule n°15.
The club finished 10th (on 12) and then 12th, and was back at the top level in 1922–23 for one season.
After a long spell at the second level, R. Uccle Sport (as it was then known since 1926) played one more season in the first division in 1947–48.
This article about a Belgian association football club is a stub.