Surname Koyagae (Koyagae 
) , around the globe, is a very rare cognomen. The family name Koyagae is habitual in Sub-Saharan Africa, particularly Tanzania, where it is a rare surname. Much less frequently, Koyagae is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koyagae | Tanzania |