Family name לרו (Leroux 
, Lerroux 
, לרו 
) , all over the world, is a common surname. The cognomen לרו is habitual in France, where it is quite a common surname, Reunion, and Jersey (explore the name in all countries). Measured by absolute frequency, the name is most common in France, Canada, and the United States. Much less frequently, לרו is the forename as well as the last name.