Marin Teodorescu (Romanian pronunciation: [ma'rin te.odo'resku]; March 8, 1896, Pite?ti – January 13, 1945, Bucharest), known as Zavaidoc ([zavaj'dok]), was a Romanian singer, the country's best known lautar in the interwar period.
Born in Pite?ti into a family of lautari, he made his way to Bucharest as a youth, together with his taraf partner.
He released his first disc with Columbia Records in 1925, meeting with instant success.
He died two decades later and was buried at Cernica.