Bert Williams (November 12, 1874 – March 4, 1922) was a Bahamian-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. He 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 American 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."