Bruce Norman Runnegar (born 2 February 1941, Brisbane) is an Australian-born paleontologist and professor at UCLA.
His research centers on using the fossil record to determine how, where, and when life originated and evolved.
He has published on a wide variety of topics, including the phylogeny of molluscs, Dickinsonia fossils and oxygen levels, and molecular clock techniques.One of the earliest species of molluscs, Pojetaia runnegari, is named after him.