Surname Gerlad (Gerlad 
) , worldwide, is a rare family name. The surname Gerlad is habitual in Tanzania, where it is a rare surname, Nigeria, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. In absolute terms, it is commonest in Tanzania, Nigeria, and the United States. Also, Gerlad is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gerlad | Tanzania, Philippines, United Kingdom, United States, Nigeria |