The 1983–84 National Football League was the 53rd staging of the National Football League (NFL), an annual Gaelic football tournament for the Gaelic Athletic Association county teams of Ireland.
Kerry defeated Galway in the final, and Mikey Sheehy scored 1-5.
Tie-breakers are played to separate teams (if necessary for promotion, relegation or knockout places).
The top two teams in Divisions 2, 3 and 4 are promoted.
The NFL title is awarded after a knockout stage.