All over the world, Γιαννάκης (Yiannakis 
, Giannakis , Yannakis 
) is a rare male first name. The forename Γιαννάκης is habitual in Cyprus, where it is quite a common masculine name, Greece, where it is quite a rare masculine name, and the United Kingdom, where it is a very rare principally boy's, but scarcely female name. More frequently, Γιαννάκης is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Yiannakis, Giannakis | Greece, Malawi, United States, Cyprus, Australia |
| Yannakis | Greece, Germany, United Kingdom, United States, Australia |
| Γιαννάκης | Greece |