Family name Chairoj (Chairoj 
) , throughout the world, is a rare last name. The cognomen Chairoj is habitual in Thailand, where it is a rare surname, the United States, where it is an extremely rare surname, and China. More frequently, Chairoj is the forename as well as the last name.
Bunlap, Tangpeerasith, Thammarat, Thiamnapha, Foongmongkolsatien, Wannasakbuddha, Wiratarnothai, Yingsiripornrat, Siripothinan, Songpiensup, Soponpanyaporn, Amornviputpanich, Thanasanti, Techakesari, Ongwongsakul, Sattayasansakul, Sripattanarat, Benjawatthananun, Rattanakawin, Rojanavongse, Watjanatapin, Pattanasukkul, Jitnapakul, Poonsawat, Potipathom, Khetudomkheeree, Pueannoi, Teosuwan, Chewraprapat, Kongban, Palawan, Nitidisayaroj, Isareekanin, Songpainsup, Akeprapai, Chinasawayuch, Pattarakiatipong, Katkamnerd, Paosukgree, Pocharoen, Laikarnchanapaiboon, Tamtaratarn, Taerattanachai, Tiannanon, Sathasakul, Changsarn, Karuhawanit, Kantatasiri, Krutdamrongchai, and Rattanamahakuna