The 3rd Greek Mountain Brigade (, 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. Commanded by Colonel Thrasyvoulos Tsakalotos, it fought in the Battle of Rimini in Italy (under I Canadian Corps), where it earned the honorific title "Rimini Brigade" () and against EAM's Greek People's Liberation Army in the Dekemvriana events in Athens.