1974–75 Northern Rugby Football League season

The 1974–75 Rugby Football League season was the 80th season of competition between the clubs of England's Northern Rugby Football League. The season's First Division Championship featured 16 clubs and was won by St. Helens. The Challenge Cup was won by Widnes.

Rule change

 * Drop goals became worth one point. Drops had previously been worth two points.

Season summary
St. Helens won their seventh Championship. York, Bramley, Rochdale Hornets and Halifax were demoted to the Second Division.

The Challenge Cup Winners were Widnes who beat Warrington 14–7 in the final.

2nd Division Champions were Huddersfield, and they, Hull Kingston Rovers, Oldham and Swinton were promoted to the First Division.

Challenge Cup
Widnes beat Warrington 14–7 in the final played at Wembley in front of a crowd of 85,998.

This was Widnes’ fourth Cup Final win in sixth Final appearances.

League Cup
Players No.6 Trophy Winners were Bradford Northern who beat Widnes 3–2 in the final.

Premiership
Rugby League Premiership Trophy Winners were Leeds who beat St. Helens 26–11 in the final.

County cups
Widnes beat Salford 6–2 to win the Lancashire County Cup, and Hull Kingston Rovers beat Wakefield Trinity 16–13 to win the Yorkshire County Cup.

BBC2 Floodlit Trophy
BBC2 Floodlit Trophy Winners were Salford who beat Warrington 10–5 in a replay after a 0–0 draw in the final.