Cognomen Lasl (Lasl 
) , worldwide, is a very rare surname. The last name Lasl is characteristic of Czechia, where it is a rare surname, Morocco, where it is a very rare surname, and the United States, where it is an extremely rare surname. In absolute terms, the name is most common in Morocco, Czechia, and India. Much less frequently, Lasl is the forename as well as the last name.