Introducing Thailand’s first “Thai Handbook of Transgender Healthcare Services”, developed under the collaboration between the Institute of HIV and Research Innovation (IHRI) and Center of Excellence in Transgender Health (CETH), Chulalongkorn University. This handbook is designed to be the resources and guidelines in providing health services to transgender people in Thailand and in the region. It is suitable for health service providers in any related fields, researchers, transgender community and any interested individuals. It is available both in Thai and English and suitable for health service providers in any related fields, researchers, transgender community and any interested individuals.