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