Jay Laurence Lush (January 3, 1896 – May 22, 1982) was a pioneering animal geneticist who made important contributions to livestock breeding.
Lush received National Medal of Science in 1968 and the Wolf Prize in 1979.
He completed his MSc in 1918 at Kansas State, and his PhD in genetics at the University of Wisconsin–Madison (1922).
Lush advocated breeding not based on subjective appearance of the animal, but on quantitative statistics and genetic information.
From 1930 to 1966, Lush was the Charles F. Curtiss Distinguished Professor in Agriculture at Iowa State University.