Heiko Bleher (born October 18, 1944) is a German researcher, author, photographer and filmmaker best known in the scientific community for his contribution to the exploration of fresh and brackish water habitats worldwide and the discovery of many species of fish and aquatic plants, several of which carry his name, discovery location or are named in honor of Bleher's family including Hemigrammus bleheri, Leporinus bleheri, Bleheratherina pierucciae, Streatocranus bleheri, Channa bleheri, Phenacogrammus bleheri, Moenkhausia heikoi, Chilatherina bleheri, Vrisea bleheri, Hyphessobrycon amandae, named for his mother, and various others.