Karin Elisabeth Wallgren-Lundgren (née Wallgren on 19 May 1944) is a retired Swedish sprinter. She competed at the 1968 and 1972 Summer Olympics in various 100–400 m events (five in total), but failed to reach the finals. She won the 400 m contest at the 1967 European Indoor Games, and placed fifth at the 1969 European Athletics Championships and fourth at the 1971 European Athletics Indoor Championships.[1][2]