Márkos Vamvakáris (Greek: Μάρκος Βαμβακάρης; 10 May 1905 – 8 February 1972), was a rebetiko musician. He is universally referred to by rebetiko writers and fans simply by his first name, Márkos. The great significance of Vamvakaris for the rebetiko is also reflected by his nickname: the “patriarch of the rebetiko”.

Vamvakaris was born on 10 May 1905 in Ano Syros (or Ano Khora), Syros, Greece. He was the first of six children, while his family belonged to the sizeable Roman Catholic community of the island, the “Francosyrians”, a name deriving from the colloquial Greek reference to West Europeans collectively as “the Franks“. At the age of twelve, in the false belief that he was wanted by the police, Vamvakaris fled Syros for the port of Piraeus. He worked as a stevedore, a pit-coal miner, a shoe-polisher, a paperboy, a butcher, and other odd jobs. He heard a bouzouki player playing, and vowed that if he did not learn to play the instrument in six months he would chop off his own hand with a cleaver (he was working in the public abattoirs at the time). He learned bouzouki, becoming an innovative virtuoso player, and began to write songs of his own. At first he often played in clandestine hashish-smoking establishments known as tekés; later he and his band, which included Giorgos Batis, Anestis Delias and Stratos Pagioumtzis played in more legitimate clubs and taverns. They were extremely popular, and Markos made many recordings. His initial nickname among the rebetes was “the Frank” (Fragos).