Cognomen Koutlakis (Koutlakis 
) , all around the world, is a very rare last name. The cognomen Koutlakis is characteristic of Greece, where it is a rare surname, Australia, and Canada, where it is an extremely rare surname. In absolute terms, this name is the most popular in Greece, Australia, and the United States. Much less frequently, Koutlakis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koutlakis | Australia, Greece, Canada, United States, United Kingdom |