Douglas "Jocko" Henderson (March 8, 1918, Baltimore-July 15, 2000, Philadelphia) was an American radio deejay.

Henderson began his broadcast career in 1952 at Baltimore station WSID, and in 1953 began broadcasting in Philadelphia on WHAT. He hosted a show called "Rocket Ship" out of New York radio stations WOV and WADO from 1954 to 1964, which was an early conduit for rock & roll. He was known for a distinctive style of rhythmic patter in his radio voice, which he had learned from a Baltimore deejay, Maurice "Hot Rod" Hulbert. Henderson continued on the stations WDAS and WHAT until 1974, deejaying in Philadelphia and New York as well as hosting concerts in both cities and a TV music program in New York. In addition to Philadelphia, New York, and Baltimore, Henderson was also broadcast on stations in St. Louis, Detroit, Miami, and Boston.