Eugène François Germain Casse (22 September 1837 – 9 December 1900) was a French journalist and agitator who opposed the Catholic Church and the government of the Second French Empire in newspapers and meetings, and was arrested and imprisoned several times for his activities.During the French Third Republic he represented Guadeloupe in the National Assembly from 1873 to 1876, and was then Deputy of Seine from 1876 to 1889. His views gradually moderated from the far left towards a more centrist position.After leaving office he served briefly as Governor of Martinique.