Sjeng Kerbusch (1947 - March 1, 1991) was a Dutch behavior geneticist.A native of Maastricht, he obtained his Ph.D. from the Catholic University Nijmegen in 1974 as the third Dutchman in this field. Kerbusch' specialism was the application of quantitative-genetic methods, especially diallel crosses and Mendelian crosses, to the analysis of behavior.