Family name Agaston (Agaston 
) , globally, is a very rare cognomen. The surname Agaston is characteristic of Nicaragua, where it is a very rare surname, Honduras, and Italy, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Italy, Philippines, and Nicaragua. More prevalently, Agaston is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Agaston | Brazil, Italy, Philippines, Tanzania, India |