Vassilis Tsitsanis (Greek: Βασίλης Τσιτσάνης 18 January 1915 – 18 January 1984) was a Greek songwriter and bouzouki player. He became one of the leading Greek composers of his time and is widely regarded as one of the founders of modern Rebetiko and Laiko music. Tsitsanis wrote more than 500 songs and is still remembered as an extraordinary composer and bouzouki player.

Tsitsanis was born in Trikala, in Thessaly, Greece. His family came from the region of Epirus. He has been described as having been an Aromanian, and his surname Tsitsanis could indicate some connection with the Aromanians of Metsovo. He was the only figure performing rebetiko at his time coming from the Greek mainland and not from the islands. This may be the reason why he was sometimes known as “the Vlach” by his fellow musicians, although this could be due to the actually Aromanian ethnic origin of Tsitsanis (as Aromanians are known as Vlachs in Greece). It is also rumored that Stratos Pagioumtzis gave him this nickname. Tsitsanis was also nicknamed “Tsilias”.