The olm is a species of amphibian.

Olm may also refer to:

• Ocular larva migrans, a form of toxocariasis
• Oil Life Monitor; see Maintenance
• Olm (and Megolm) is a cryptographic algorithm used by Matrix (protocol)
• Olm, Luxembourg
• OLM, Inc., 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
• Jeff Olm, visual effects editor
• Olympia Regional Airport (IATA code)
• An optical light microscope
• Ordre Libanais Maronite, the Lebanese Maronite Order, religious order
• Congregation of the Sisters of Our Lady of Mercy

• Evropos
• Evrotas minnow
• Evrotas River
• Ev'rybody Know Me
• Ev'rybody Wants to Be a Cat
• Evry Cathedral
• Ev'ry Day of My Life (album)
• Evry-Gregy-sur-Yerres
• Evry-Grégy-sur-Yerres
• Evrymenes
• Evrymenes, Ioannina
• Evrymenes, Larisa
• Evrymenes (Larisa), Greece
• Evrymenes, Larissa
• Evrymenes (Larissa), Greece
• Evrymenoi
• Evrymenoi, Ioannina
• Evryménes, Larisa
• Evryménes (Larisa), Greece
• Evryménes (Larissa), Greece
• Ev'ry Night
• Evry Schatzman
• Ev'rything I've Got
• Ev'rything's Coming Up Dusty
• Evryware