Agamudayar (otherwise Agamudaiyar, Akamudayar, Agamudayan) are a Tamil community found in the Indian state of Tamil Nadu.

[2] In Southern parts of Tamil Nadu, they are considered as one of the three castes which make up the Thevar or Mukkulathor community.

According to the anthropologist Zoe E Headley, the three communities (Agamudayar, Kallar and Maravar) are the "numerically dominant rural backward castes of the southern districts of Tamil Nadu".

[3] Agamudayars are listed in the national commission of backward caste lists for Tamil Nadu as "Agamudayar”.

[4][5] [6] The term Agamudayar is a Tamil word of "Agam" which means Palace or Land and "Udayar"means Lord or Holder "Palace Chief " or "Land holder".