This chapter talks about international tourism in Southeast Asia by focusing on the member of ASEAN. The chapter provides overview of international tourism performance in regional level and its role to region’s economy. Furthermore, international tourism performance based on destinations and origins is also discussed. The paper excludes the Democratic Republic of Timor-Leste from the assessment not only because the country is not ASEAN member but also inadequate data availability of Timor-Leste due to its separation from the Republic of Indonesia in 2002.