A Study of Need Analysis for Developing a Syllabus for a New Internationalization Course: Environment for Health Rungrawee Samawathdana a and Aim-utcha Wattanaburanon a Department of Curriculum and Instruction, Division of Health and Physical Education, Chulalongkorn University, Payathai Street, Pratumwan, Bangkok, Thailand *Corresponding Author: rungrawee1113@gmail.com; rungrawee.sa@chula.ac.th ABSTRACT This paper discusses an illustration of a new Internationalization course syllabus design for Environment for Health, which is constructed using a needs analysis framework process. The selective course is designed for Health and Physical Education undergraduate students at a university in Thailand. Constructing a new International Course Curriculum for Environment for Health not only serves the ASEAN policy on education, but also the World Health Organization (WHO) as environment for health is one of the world’s most significant issues. The participants are 30 Thai students responding to a questionnaire using five-points Likert scale criteria and open-ended. The instruments were validated using content analysis and three experts’ suggestions before the pilot testing and revision. The results will be discussed in three areas including course content, learning process, and evaluation. This proposed syllabus is in the experimental process with pre-service teacher students in the Division of Health and Physical Education. Keyword: ASEAN, course syllabus, Environment for Health, Health and Physical Education, Internationalization 1. Introduction This study aims to demonstrate a study of learners’ wants as part of a development of an International Health Education course syllabus for Undergraduate students: Environment for Health. Developing an International Health Education Course Curriculum for Undergraduate students focusing on Environment for Health course is essential as it will serve the policies of the Association of Southeast Asian Nations (ASEAN) charter, our Thai Ministry of Education, and Thai Higher Education. The course curriculum will be constructed to motivate the learner of improving English and Health communication ability, and prepare them to be a qualified to the ASEAN in-service teacher. The