Nikos Karvelas (Greek: Νίκος Καρβέλας; born Nikos Leonardos in 8 September 1951) is a Greek songwriter, producer, and singer. He has sold millions of records as a producer and is most recognizable for his three-decade-long collaboration with Anna Vissi, while some of his other well-known collaborations include Tolis Voskopoulos and Sakis Rouvas. Karvelas has released multiple personal studio albums that have had mild to big success. In 2012, Alpha TV ranked Karvelas as the 13th top-certified composer in Greece in the phonographic era.