Adambar is a village in the Nannilam taluk of Tiruvarur district in Tamil Nadu, India.

As per the 2001 census, Adambar OR Athambar had a population of 1,609 with 824 males and 785 females. The sex ratio was 953. The literacy rate was 80.74.

• "Primary Census Abstract - Census 2001". Directorate of Census Operations-Tamil Nadu. Archived from the original on 17 February 2011.