Dina Thanthi (Tamil: தினத்தந்தி, English: Daily Mail; known as Daily Thanthi in English) is a Tamil language daily newspaper. It was founded by S. P. Adithanar in Madurai in 1942. Dina Thanthi is India's largest daily printed in the Tamil language and the ninth largest among all dailies in India by circulation.^[2] It is printed in 16 cities across India and also prints an international editions in Dubai & Sri lanka.

Dina Thanthi was established in Madurai in 1 November 1942 by lawyer, politician and editor S. P. Adithanar.^[3]

This daily newspaper is published from 16 cities in India namely Bangalore, Chennai, Mumbai, Pondicherry, Coimbatore, Cuddalore, Dindigul, Erode, Madurai, Nagercoil, Salem, Thanjavur, Tiruchirappalli, Tirunelveli, Tirupur and Vellore. In the second half of 2015, the newspaper has a circulation of 1,714,743.

International edition is printed in Dubai, United Arab Emirates for the Middle East market.^[4]

Another international edition is printed at Colombo in Sri Lanka, issued along with Virakesari (Sri Lanka Tamil newspaper).

In 2005, the central Government conferred the Padma Shri award to the managing director of Dinathanti, Sivanthi Adithan, for his excellent work in educating the poor.

In order to improve the educational quality of the poor students, the daily newspaper is giving educational grants to the students who are studying in the top 3 positions in the 10th plus-2 classes. Tamil Nadu Scholars are honored by giving prize money and gold medal every year in C. Pa. Aditanar's birthday function.

Various supplements also come along with Daily Thanthi, as follows:

It also carries a special supplement and conducts programmes for students to prepare for board and other competitive exams.^[5]

• Maalai Malar
• Thanthi TV
• Hello FM
• DT Next