1965–66 Northern Rugby Football League season

The BBC2 Floodlit Trophy competition was launched in this season with the BBC televising matches on Tuesday nights.

The competition was used to trial the four-tackle rule, an experiment in ending the unlimited tackles that had been a by-product from the introduction of the play-the-ball in 1906.

[1][2] St. Helens finished the regular season as league leaders before winning their fourth Championship when they beat Halifax 35–12 in the play-off final.

At the end of the season, Eric Ashton became the first Rugby League player to receive an award from Her Majesty, the Queen.

[4] St Helens won 35–12 with their hat trick-scoring prop forward, Albert Halsall being awarded the Harry Sunderland Trophy as man-of-the-match.