Adyar is a large neighbourhood in south Chennai, Tamil Nadu, India.

It is surrounded by the Tharamani in the West, Thiruvanmiyur to the South, Besant Nagar in the East, Kotturpuram in the North-West and Raja Annamalai puram in the North past the Adyar River.

Adyar and the neighbouring Guindy had been used as hunting grounds by British officials of Fort St. George from the 1680s onwards though Adyar is first mentioned as a suburb of Madras only in a map from the year 1740 when the British purchased the village and integrated it with the Madras Presidency.

[3] Adyar started to grow rapidly at the turn of the 20th century following the founding of the headquarters of the Theosophical Society by Mrs. Helena Blavatsky here in 1883.

IIT Madras, Anna University, National Institute of Fashion Technology, Kumar Rani Meena Muthiah Arts and Science College, Asian College of Journalism and the Technical Teachers Training Institute are all located in adjacent neighbourhoods.