Daily Thanthi (or Dina Thandi) is a leading daily newspaper published in Tamil Nadu, India. It was founded by Sri Si. Pa. Aditanar , with its first edition from Madurai in 1942. The publication spread over Tamil Nadu and the neighbouring states of Pondicherry and Karnataka.

Daily Thanthi became one of the largest Tamil language dailies by circulation within a few years; it has been a leading Tamil daily since the 1960s. It has today 14 editions. It is the highest circulated Tamil daily in Bangalore and Pondicherry, and one of the largest in Tamil Nadu.

Daily Thanthi's editorial policy is neutral. The publication does not support any one political party or government. The language is simple and easily understandable. Daily Thanthi's circulation during July-December 2004 was 790,900 copies (certified by ABC).