Thittai or Thengudi Thittai is a village in the Thanjavur taluk of Thanjavur district, Tamil Nadu, India.This village is known for its Vasishteswarar Temple, Thittai.

As per the 2001 census, Thittai had a total population of 1105 with 544 males and 561 females. The sex ratio was 1031. The literacy rate was 75.32.

• "Primary Census Abstract - Census 2001". Directorate of Census Operations-Tamil Nadu. Archived from the original on 6 August 2009.

10°53′49″N 79°07′48″E / 10.8970°N 79.1300°E / 10.8970; 79.1300