Adambar is a village in the Nannilam taluk of Tiruvarur district in the Indian state of Tamil Nadu.

As per the 2001 census, Adambar OR Athambar had a population of 1,609 with 824 males and 785 females.

Adambar Shri Kothandaramar temple and a 13th-century Shiva temple are located in the village.

Rama vowed to kill Atham the magic deer there, which Sita devi wanted.

Buses travel to Nannilam from Tiruvarur.