Klaus Sames

Klaus Hermann Sames (born 1939 in Kassel, Germany) is a German physician (M.D.), anatomist, gerontologist, life extensionist, and cryonicist. He was the founder and the first chairman of the German Society for Applied Biostasis, having later been elected honorary chairman of it.

Sames worked as a physician and anatomist for four decades in research on the extension of the human lifespan. He was the first university teacher in experimental biological gerontology in Germany. He is an honorary member of the German Society of Gerontology and Geriatrics. He has assisted in the cryopreservation of several European patients of the Cryonics Institute (CI). He is a member of the Scientific Advisory Board of CI.

He is the editor of the 2013 book Applied Cryobiology and the 2018 book Cryopreservation and Lifespan Extension. He also has written Kryokonservierung (2022). He is a signatory of the Scientists' Open Letter on Cryonics, having signed it on March 25, 2004.