Last name บุญญวิโรจน์ (บุญญวิโรจน์ 
) , around the world, is an extremely rare family name. The cognomen บุญญวิโรจน์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| บุญญวิโรจน์ | Thailand |