Surname Тадаси (Meda 
, Tadashi 
, Tadasi 
) , globally, is a widespread last name. The surname Тадаси is characteristic of Guatemala, where it is quite a common surname, Burkina Faso, where it is quite a rare surname, and Albania. Not in comparison with a country's population, it is commonest in India, Japan, and Guatemala. Very seldom, Тадаси is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Meda | Italy, Egypt, Guatemala, India, Democratic Republic of the Congo |
| Tadashi | Japan, China, Indonesia, Mexico, India |
| Tadasi | China, Mexico, United States, India, Brazil |