John Halsey may refer to: John Halsey (privateer) (c. 1662–1708), colonial American privateer and later pirate John Halsey (musician) (born 1945), English rock drummer Sir John Walter Brooke Halsey, 4th Baronet (born 1933) of the Halsey baronets John v.H. Halsey (born 1952), founder of the Peconic Land Trust
See also Halsey (disambiguation)