John Dorsey may refer to:
John Dorsey (American football) (born 1960), former American football player John Lloyd Dorsey Jr. (1891–1960), Representative from the U.S. state of Kentucky John M. Dorsey (1900–1978), author, psychiatrist and educator John H. Dorsey (1937–2018), American attorney and politician in New Jersey John W. Dorsey (1936–2014), University of Maryland, College Park administrator John Dorsey (poet), American poet and screenwriter Jack Dorsey (born 1976), inventor of Twitter USS Dorsey (DD-117), a Wickes-class destroyer in the United States Navy