Robert Culbertson West Jr. (March 18, 1928 – October 12, 2022) was an American chemist. West was an E. G. Rochow Professor of Chemistry Emeritus at the University of Wisconsin–Madison; Director of the Organosilicon Research Center, University of Wisconsin–Madison 1999–20??; President, Silatronix, Inc. (2007–20??); Distinguished Professor, Yonsei University, 2007–2011. He died in Madison, Wisconsin on October 12, 2022, at the age of 94.