Carl William Hergenrother (born 1973) is an American astronomer and discoverer of minor planets and comets. As credited by the Minor Planet Center, he has discovered and co-discovered 32 numbered asteroids at the Bigelow Sky Survey during 1993–1999. He has also discovered a number of comets including the long-period comet, C/1996 R1 (Hergenrother-Spahr), and three periodic comets, 168P/Hergenrother, 175P/Hergenrother and P/1999 V1 (Catalina). He is also a member of the science and operations team of the 2016-launched OSIRIS-REx spacecraft, a sample return mission to study near-Earth asteroid 101955 Bennu.