Adrien Lachenal (19 May 1849 in Geneva – 29 June 1918) was a Swiss politician and Jurist.
He was a Freemason,[1] and belonged to the Masonic lodge "Fidélité et Prudence" in Geneva.
[3] Adrien Lachenal was an outstanding speaker and lawyer, and he became known through defensive mandates in awe-inspiring trials.
His nephew and later President of the Grand Council Paul Lachenal joined him in his lawfirm.
His commitment to social policy finally led to the formation of an alliance with the socialists.