Family name Kotilo (Kotilo 
, Котило 
) , around the world, is a rare cognomen. The surname Kotilo is habitual in Belarus, where it is a rare surname, Ukraine, and Argentina, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Ukraine, Belarus, and Russia. Very seldom, Kotilo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kotilo | Finland, Argentina, United States, India, Nigeria |
| Котило | Kazakhstan, Russia, Ukraine, Belarus |