Surname Louwis (Louwis 
) , in all the world, is a very rare family name. The family name Louwis is habitual in Myanmar, where it is a very rare surname, Venezuela, and Honduras. Not in comparison with a country's population, this name is the most popular in Myanmar, Venezuela, and Nigeria. Also, Louwis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Louwis | Myanmar, South Africa, India, Venezuela, Nigeria |