Alathur is a village in the Kudavasal taluk of Tiruvarur district, Tamil Nadu, India.

As per the 2001 census, Alathur had a total population of 1785 with 918 males and 872 females. The sex ratio was 955. The literacy rate was 79.58.

• "Primary Census Abstract - Census 2001". Directorate of Census Operations-Tamil Nadu. Archived from the original on 19 June 2009.