Adithan
Adithan (Tamil: ஆதித்தன்) is a Tamil patronymic surname and masculine given name. Notable people with the name include:
- R. Puthunainar Adithan, Indian politician
 - S. Kesava Adithan (1933–1982), Indian politician
 - Sivanthi Adithan (1936–2013), Indian businessman and philanthropist