The 3rd Greek Mountain Brigade (Greek: ΙΙΙ Ελληνική Ορεινή Ταξιαρχία, ΙΙΙ Ε.Ο.Τ.) was a unit of mountain infantry formed by the Greek government in exile in Egypt during World War II. It was formed from politically reliable right-wing and pro-royalist personnel following a pro-EAM mutiny among the Greek armed forces in Egypt in April 1944.