William 'Red' McKenzie (October 14, 1899 – February 7, 1948) was an American jazz vocalist and musician who played a comb as an instrument. He played the comb-and-paper by placing paper, sometimes strips from the Evening World, over the tines and blowing on it, producing a sound like a kazoo.
In 1923 he started the Mound City Blue Blowers with Jack Bland and Dick Slevin and they were later joined by guitarist Eddie Lang. The quartet also used the name Red McKenzie and the Candy Kids. In 1929 the Blue Blowers recorded the songs "One Hour" and "Hello Lola" with Glenn Miller, Pee Wee Russell, and Coleman Hawkins. They also recorded with Bunny Berigan, Jimmy Dorsey, and Muggsy Spanier. McKenzie sang with the Paul Whiteman orchestra and in the 1930s led the Spirits of Rhythm and the Farley-Riley band.
- Roger D. Kinkle, The Complete Encyclopedia of Popular Music and Jazz, 1900–1950 (Arlington House Publishers, 1974)