Objective of this study is to examine the brand loyalty of health tourism. For this purpose, the relationship between brand goodwill (BG), brand experience (BE), brand personality (BP), tourist brand trust and health tourism brand loyalty were examined. A survey was carried out and data were collected from the health tourists. Therefore, 300 questionnaires were distributed among the health tourists in Ranong city of Thailand. Partial Least Square (PLS) was used for data analysis. Results of the study highlighted that; BG, BEand BP have positive effect on brand loyalty. Better BG, BE and BP have the potential to enhance brand loyalty of health tourism. Therefore, increase in BG, brand experience, BP increases the brand loyalty. Finally, the tourist brand trust also has positive effect to enhance brand loyalty. Therefore, health tourism brand loyalty has four determinants; BG, brand experience, BP and tourist brand trust. This study is significant theoretical and practical implication for tourism management practitioners of Ranong city.