Koothadivayal is a village in the Pattukkottai taluk of Thanjavur district, Tamil Nadu, India.

As per the 2001 census, Kotthadivayal had a total population of 301 with 152 males and 149 females. The sex ratio was 980. The literacy rate was 77.27.

• "Primary Census Abstract - Census 2001". Directorate of Census Operations - Tamil Nadu. Archived from the original on 29 August 2009. Retrieved 7 July 2018.