Louis Gassier (30 April 1820 – 18 December 1871) was a French operatic baritone.
[1] Born in Saint-Maximin-la-Sainte-Baume (Var department), Gassier married the Spanish singer Josefa Gassier [fr].
[2] He was hired with his wife in 1855 at Drury Lane in London, where they performed in La sonnambula and Il trovatore.
[3] Gassier died in Havana on 18 December 1871.