Bengt Åberg (born 26 June 1944) is a Swedish former professional motocross racer.
Aberg was born in Gävleborg County, Sweden. He was one of the top riders in the Motocross Grand Prix World Championships during the late 1960s and early 1970s. In 1968 he was part of the Swedish team that won the Trophée des Nations. He won the F.I.M. 500cc Motocross World Championship in 1969 and 1970 while riding for the Husqvarna factory racing team. Åberg was a member of three victorious Swedish teams at the Motocross des Nations in 1970, 1971 and 1974. In 1975 and 1976, he rode for the Bultaco factory in the 500cc class. In 1977 he competed on a highly modified four stroke Yamaha XT500 built in collaboration with former world champions Torsten Hallman and Sten Lundin. Åberg rode the bike to a victory in the first moto of the 1977 500cc Luxembourg Grand Prix and ended the season ranked 9th in the final world championship standings.
In 1995 he won the Swedish ice speedway national championships.