Katharina Louise Mo-Berge (born 28 August 1944) is a Norwegian cross-country skier and orienteering competitor from Trondheim.
She competed in 10 km at the 1968 Winter Olympics in Grenoble, and in 5 and 10 km at the 1972 Winter Olympics in Sapporo.She was Norwegian cross-country skiing champion in 1972, in both 5 and 10 km, and was awarded the King's Cup.She competed in the 1968 World Orienteering Championships, where she placed 12th in the individual competition.