Bert Williams (November 12, 1874 – March 4, 1922) was a Bahamian-born American entertainer, one of the pre-eminent entertainers of the vaudeville era and one of the most popular comedians for all audiences of his time. While some sources have credited him as being the first Black man to have a leading role in a film with Darktown Jubilee in 1914, other sources have credited actor Sam Lucas with this same distinction for a different 1914 film, the World Film Company's Uncle Tom's Cabin. Ebony stated that "Darktown Follies was the first attempt of an independent film company to star a black actor in a movie", and credited the work as beginning a period in independent American cinema that explored "black themes" within works made for African-American audiences by independent producers.

Williams was by far the best-selling Black recording artist before 1920. In 1918, the New York Dramatic Mirror called Williams "one of the great comedians of the world."

Williams was a key figure in the development of African-American entertainment. In an age when racial inequality and stereotyping were commonplace, he became the first Black person to take a lead role on the Broadway stage, and did much to push back racial barriers during his three-decade-long career. Fellow vaudevillian W. C. Fields, who appeared in productions with Williams, described him as "the funniest man I ever saw—and the saddest man I ever knew."