1965–66 National Football League (Ireland)

1964–65 National Football League
League details
DatesOctober 1965 – 16 October 1966
League champions
WinnersLongford (1st win)
CaptainBrendan Barden
ManagerMick Higgins
League runners-up
Runners-upNew York
CaptainPaddy Cummins

The 1965–66 National Football League was the 35th staging of the National Football League (NFL), an annual Gaelic football tournament for the Gaelic Athletic Association county teams of Ireland.

Longford won their first and (so far) only NFL title with wins over Galway in the "home" final and New York in the two-legged "World Championship." Longford had the first leg at Pearse Park and won easily. After the second leg, an angry crowd chased the New York team off the field due to their (perceived) rough play.