The 1980 Ladies European Tour was the second season of golf tournaments organised by the Women's Professional Golfers' Association (WPGA), which later became the Ladies European Tour (LET). The tour was principally sponsored by Carlsberg, who organised ten 36-hole tournaments counting towards their own Order of Merit. There were eleven other tournaments on the schedule including the Women's British Open, organised by the Ladies' Golf Union. The Order of Merit was won by Muriel Thomson, who also topped the Carlsberg Order of Merit.