There are few in-depth studies of Thai college student health and mental health behaviors that focus on the cultural influences that shape such behaviors. Thus, the purposes of this study are: (1) to conduct the needs assessment survey on health and mental health issues at a public university in Thailand in order to better understand the issues that impact Thai college students; and (2) to create an effective Wellness Program for Thai college students in order to increase utilization of campus and community health and mental health services. The blending of student development theories with culturally salient health and mental health interventions are utilized to create the Wellness Program Model that Thai universities can implement to support their students' health, mental health, and academic persistence. This study's participants were 320 undergraduate students from a public university in Thailand. The results of the study indicated that Thai college students have several health and mental health issues that need to be addressed, including body image, sexual communication, binge drinking, depression, and anxiety. Colleges in Thailand can promote student wellness by connecting students with health and mental health resources as well as encouraging student development through involvement activities. By educating students on health and mental health issues, campuses will promote wellness and decrease participation in unhealthy behaviors. In further utilizing family and community figures, campuses will create buy-in and encourage students to seek help. With the creation of opportunities for individual growth, campuses will help students develop stronger internal motivations to do well in college and beyond. Positively affecting student health and mental health for Thai college students will also positively impact the trends toward healthy practices for Thai society. (Contains 1 figure.)