Louis (Gabriel Abraam Samuel Jean) Secretan (15 September 1758 – 24 May 1839) was a Swiss lawyer, politician and mycologist. He published Mycologie Suisse in 1833, though the names are not regarded as valid unless republished by other authors.[1] He was a member of the Swiss Academy of Sciences.[2] The standard author abbreviation Secr. is used to indicate this person as the author when citing a botanical name.[3]