Surname Wiruj (Wiruj 
) , all around the world, is an extremely rare cognomen. Much more frequently, Wiruj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wiruj | Thailand |
Saklor, Suwanta, Somsopon, Laoradthapong, Fongthamnimit, Suttiwaree, Asawaprapas, Sapcharoen, Dechayonbancha, and Suwanpramote