Ivan Mihailov Gavrilov (Bulgarian: ???? ???????? ????????; 26 August 1896 – 5 September 1990), sometimes Vancho Mihailov, was a Bulgarian revolutionary in interwar Macedonia, and leader of the Internal Macedonian Revolutionary Organization (IMRO) after 1924.
Under Mihailov, the IMRO identified itself closely with Bulgarian nationalism.
He also cooperated actively with Benito Mussolini’s Fascist Italy, Admiral Horthy’s Hungary and Adolf Hitler’s Nazi Germany.
Numerous terrorist attacks were carried out by IMRO under his leadership, the most spectacular of which was the assassination of King Alexander I of Yugoslavia in Marseilles in 1934, in collaboration with Croatian Ustaše.
At the end of the Cold War, only a months before his death in 1990, he has stated: I am Bulgarian from Macedonia.
In the Republic of North Macedonia, however, he is considered a Bulgarophile traitor.