Throughout the world, Papathanasiou (Papathanasiou 
, Παπαθανασίου ) is a very rare boy's first name. The forename Papathanasiou is characteristic of Southern Europe, particularly Greece, where it is a rare masculine name. Predominantly, Papathanasiou is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Papathanasiou | Greece, Cyprus, Australia, United States, Germany |
| Παπαθανασίου | Greece |