Tamil Nadu Open University (TNOU) is a recognized open university in the state of Tamil Nadu, India. It offers a wide range of undergraduate, postgraduate, diploma, and certificate courses through distance learning mode. TNOU focuses on providing accessible and quality education to learners from diverse backgrounds, promoting lifelong learning and empowering individuals to achieve their educational and career goals.

Tamil Nadu Open University (TNOU) has organized its academic offerings into 13 specialized 'Schools of Study' to promote focused learning and encourage interdisciplinary engagement. These encompass diverse fields such as Social Sciences, Management Studies, Humanities, and Science. TNOU's strategic establishment of 8 regional centers, coupled with a multitude of Learning Support Centers dispersed across Tamil Nadu, underscores its commitment to extending educational opportunities statewide. This extensive network ensures accessibility to a majority of the population, surpassing the coverage provided by other higher education institutions in the region. TNOU's proactive approach facilitates seamless integration and promotes academic excellence throughout the state.