Reuben "Ruby" Braff (March 16, 1927 – February 9, 2003) was an American jazz cornetist and trumpeter.

Braff was a wonderfully characterful and melodic player with an immediately identifiable sound and unique tone on the cornet, an uncommon instrument in post-war jazz. He style was fundamentally based on that of earlier players including Louis Armstrong, Bobby Hackett and Bunny Berigan but he transcended these influences to always sounds fresh, sparky and somehow modern.

He was born in Boston and began playing in local clubs in the 1940s. In 1949, he was hired to play with the Edmond Hall Orchestra. He relocated to New York in 1953 where he was much in demand for band dates and recordings.

He died February 10, 2003, in Chatham, Massachusetts.

"Sure, they’ve made statements about my supposedly combining a modern approach with a feeling for traditional forms. Well, people say all sorts of things, because they want to categorise and label. I’ve only ever had two labels. Either it’s good or it stinks." - Ruby Braff speaking in 1968