Clench
The taxon authority Clench may refer to:
- Harry Kendon Clench (1925–1979), U.S. entomologist, lepidoptera specialist, son of William James Clench, husband of Mary Anne Heimerdinger Clench
- Mary Anne Heimerdinger Clench (1932–2011), U.S. ornithologist, wife of Harry Kendon Clench
- William James Clench (1897–1984), U.S. malacologist, father of Harry Kendon Clench