Eugène Jost (18 September 1865 – 24 January 1946) was a Swiss architect of the Belle Époque.^[1]

Eugène Jost was born on 18 September 1865 in Corsier-sur-Vevey. He initially studied at the industrial school in Corsier before moving to Paris, where he studied architecture at the école nationale supérieure des beaux-arts between 1884 and 1891 under Louis-Jules André then Victor Laloux. He won several prizes, medals and internal competitions and then returned to Switzerland, specializing in hotels.

He set up his practice in Montreux, a wealthy tourist spot. In twenty years he built nearly fifty buildings, mostly long-lasting and large. In 1904 he moved to Lausanne in the wake of several projects (hôtel des Postes on Saint-François, restoration of château Saint-Maire and design for a room at the Grand Conseil vaudois). He won first prize in the national competition for the Hôtel des Postes in Bern and second prize for that in Zürich and also created commemorative monuments to William Tell, Alexandre Vinet and Major Davel. His pace of work was slowed by the First World War and he retired for good in 1931.

He died on 24 January 1946 in Lausanne.