The olm (Proteus anguinus) is a species of amphibian.
Olm may also refer to: Ocular larva migrans, an eye disease Oil life monitor Olm (encryption protocol) Olm, Luxembourg OLM (studio), formerly Oriental Light and Magic, a Japanese animation studio Hans Werner Olm, German comedy artist The Olms, a musical group made up of Pete Yorn and J.D. King Olympia Regional Airport (IATA code) Ordre Libanais Maronite, the Lebanese Maronite Order, religious order Ordo Lectionum Missae, a Roman Catholic liturgical lectionary