Family name Guil-Lao (Guil-Lao 
) , all around the world, is an extremely rare last name. Predominantly, Guil-Lao is the forename as well as the last name. Parts of the name also exists independently as a last name Guil, and a last name Lao.
| VARIANT | COUNTRY |
|---|---|
| Guil-Lao | Philippines |