Gerhard Krefft (30 March 1912 - 20 March 1993) was a German ichthyologist and herpetologist.
His father was a neurologist, who "was an enthusiastic collector of living reptiles and amphibians", and his mother was a concert singer.
He and his wife Ingeborg were married in 1947, and they had three daughters.
He was the great-nephew of the zoologist, palaeontologist, and Curator of the Australian Museum, Johann Ludwig (Louis) Gerard Krefft (1830âÂÂ1881).
He had more than 160 scientific publications, many of which were "milestone contributions to the taxonomy and zoogeography of oceanic fishes".