Henry Luther "Hinkey" Haines (December 23, 1898 – January 9, 1979) was a professional athlete who played American football in the National Football League and baseball in the Major League Baseball association. Haines was a star of the New York Giants football team in his time and has the distinction of being the only athlete to have played on national championship teams in both baseball and football. He won the 1923 World Series with the New York Yankees and the 1927 NFL Championship with the New York Giants.