Macedonian Youth Secret Revolutionary Organization

The Macedonian Youth Secret Revolutionary Organization (Bulgarian: Македонска младежка тайна революционна организация, Macedonian: Македонска младинска тајна револуционерна организација, romanized: Makedonska mladinska tajna revolucionerna organizacija; MMTRO/MYSRO) was a secret pro-Bulgarian youth organization established by the Internal Macedonian Revolutionary Organization (IMRO), active in Macedonia between 1922 and the 1940s. MMTRO's statute and establishment were approved by the leader of the IMRO, Todor Alexandrov. After its establishment, it soon gained influence amongst Macedonian Bulgarians in Belgrade, Vienna, Graz, Prague, Ljubljana and other places where Macedonian students lived.