The ASEAN region is home to great ethnic, cultural, political and economic diversity and linguistically, represents a region where both Outer and Expanding Circle varieties of English are spoken. English is designated as the sole working language of the ASEAN region but in reality, it has a different status and performs very different roles in each ASEAN member state. This article first provides an overview of the spread of English in Southeast Asia. It then looks at English language policies in each of the Outer and Expanding Circle ASEAN countries, and discusses issues including models and norms of spoken English and intelligibility concerns. The article concludes by emphasizing that global--local tensions in the use of English in each of the ASEAN contexts should be taken into consideration. There is also the need to strike a balance between the existing tensions in order for the region to compete in the globally connected landscape of the 21st century.