Surname Alegui (Alegui 
) , around the world, is a very rare cognomen. The family name Alegui is characteristic of Tunisia, where it is a rare surname, Chile, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Tunisia, Chile, and Mexico. Very seldom, Alegui is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alegui | Argentina, Chile, Mexico, Venezuela, Tunisia |