The Aruviyur Nagarathars (also known as Aruviyur Nagarathar Chettiars) is a Nagarathar community under Chettiar caste in Shaivism that originated in Kaveripoompattinam under the Chola kingdom of India. They are a prominent mercantile Vaishya caste in Tamil Nadu, South India. They are a community with very rich cultural heritage, known for their philanthropy; building temples and schools, and maintaining them throughout India and Asia.
Aruviyur Nagarathars founded their non profit society named Aruviyur VadakkuValavu Nagarathar Education Development Society (also known as Aruviyur VadakkuValavu Nagarathar KalviValarchi Kalagham - AVNK) on 16 Jan 1982 by A. L. Murugan and N. Thirunavukkuarasu at Piranmalai, Tamil Nadu. This organisation is formed to mainly to cater to the educational needs of the Aruviyur Nagarathar community members by providing educational scholarships for the needy.