Ariyakudi Ramanuja Iyengar (19 May 1890– 23 January 1967), popularly known as Ariyakudi, was a Carnatic music vocalist, born in , a town in the present-day Sivaganga district of Tamil Nadu. Ariyakudi developed a unique style of singing which came to be known as The Ariyakudi Tradition and is followed by his students. He is credited with establishing the modern katcheri (concert) traditions in Carnatic music.