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

As per the 2001 census, Alangudi had a population of 1,464 with 763 males and 701 females. The sex ratio was 919. The literacy rate was 76.55.

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