This dissertation aims to study the craniometric data of the modern Thais population that is gaining in forensic anthropology applications and also the history of the Thai population. This study sample consisted of 429 modern adult Thai skeletons who their age at death was between 22-95 years old, divided into 242 males and 137 females, from the collection maintained by Departments of Anatomy at Chiang Mai University, Khon Kaen University and Naresuan University. To address these issues, 24 standard cranial measurements were taken following the standard method provided by Moore-Jansen et al. (1994) and then analyze these data with the statistical methods.

Comparison of the males and females found some significant difference landmarks which can use for sex determination in the Thai population but when comparison of the three sub-regional groups found no significant craniometric differences among them. It revealed that although the modern Thai population is diverse both in ethnicity, language, and physical characteristics but all have a similar cranial morphology.