Rangers played a total of 44 competitive matches during the 1948–49 season becoming the first club to win The Treble.
Rangers won the league by a single point over second placed Dundee, winning 20 of the 30 matches.
The Scottish Cup was won thanks to a 4–1 win over Clyde with goals from Billy Williamson, Jimmy Duncanson and a brace from George Young.
The club won the League Cup with a 2–0 win over Raith Rovers.
21 September 1948: Charlie Watkins to Luton Town.