Sten Wahlund

Sten Gösta William Wahlund (1901 — 1976) was a Swedish human geneticist and politician. He is best known for first identifying the Wahlund effect, that subpopulations with different allele frequencies cause reduced heterozygosity than what is expected from Hardy–Weinberg equilibrium.

He graduated from Uppsala University in 1924 and received a PhD in 1933. He later became important in the Bondeförbundet and was a member of the Swedish parliament.