Family name Llevelyn (Llevelyn 
) , in the world, is an extremely rare cognomen. Much more frequently, Llevelyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Llevelyn | United States, South Africa, Philippines |
Lico, Rhone, Young, Llurca, Delgado, Tomalon, Bagahansol, and Ricafranca