Bernt Thomas Magnuson (also Magnusson, born 2 July 1950) is a retired Swedish cross-country skier.
He competed at the 1972 Winter Olympics in the 30 km and 4 × 10 km events and placed 28th and fourth, respectively.
He won three medals at the FIS Nordic World Ski Championships, including golds in the 30 km (1974) and the 4 × 10 km (1978) and a bronze in the 50 km (1974).
Magnusson also won the 50 km event at the 1977 Holmenkollen ski festival.