Each country responds to internationalization differently and offers various interpretations of the concept. Thailand has incorporated the internationalization of higher education into its plans since 1990. This article aims to discuss the primary motivations of the government and of Thai universities in moving toward the goal of internationalization. The discussion focuses on so-called "international programs" in Thailand. Using English as the medium of instruction, these "international programs" have been widely offered in both public and private universities. The programs illustrate the internationalization of higher education in terms of its teaching function. Generally, government rationales involve both global economic trends and domestic socioeconomic forces. At the institutional level, stakeholders’ demands, needs of universities to generate fee income, and specific reasons drawn from domestic context were shown to be the main drivers of the international programs. Current interpretations of the efforts to internationalize higher education in Thailand show a quantitative growth in programs that only serve particular demographic groups. The substantial contributions that internationalization may offer to the higher education system have not been guaranteed.