Cognomen Lerwa (Roi 
, Lerwa 
) , in the entire world, is a common family name. The surname Lerwa is characteristic of Mongolia, where it is a common surname, Algeria, where it is quite a common surname, and Tunisia (explore the name in all countries). In absolute terms, the name is most common in Algeria, Myanmar, and Mongolia. Likewise, Lerwa is the forename as well as the last name.