Panagiotis Toundas (Greek: Παναγιώτης Τούντας; 1886–1942) was a Greek composer of the early 20th century. He is probably the most famous representative of the "Smyrna School" and made a notable contribution to the creation of the rebetico style music in Greece. He was born in Smyrna and from a young age he learned to play the mandolin. In the early 20th century became a member of the Smyrneiki Estudiantina. He joined many groups and traveled a lot, especially to the Greek diaspora.