Gabriel Mollin (September 15, 1835, Bourges – October 18, 1912) was a French revolutionary who successively advocated communism, positivism and anarchism.
He was a member of the Cercle des prolétaires positivistes and served as their delegate to the Basle Congress of the International Workingmen's Association (i.e. the First International) held in 1869.
[1][2] He was married in 1873 and his wife had a child.
In 1875 he was detained in the Sainte-Anne Hospital Centre after being diagnosed as suffering from mental derangement brought about by alcoholism.
He left the asylum on 22 January 1876, accusing his psychiatrist and fellow positivist Jean-François Eugène Robinet of having him locked up so that his wife would leave and take away his son.