Devonia may refer to:
Devonia was one of the GWR 3031 Class locomotives that were built for and run on the Great Western Railway between 1891 and 1915 Devonia (steamer), a passenger ferry, formerly named the Scillonian before 2004 PS Devonia, a British paddle steamer in service 1905 to 1940. Devonia, Tennessee, a town in the USA