One important skill for 21st century people is communication. However, trait-like communication apprehension (CA) can hinder effective communication. More than that, when communicating with foreigners who come from another culture, some non-native speakers of English might also be hindered by intercultural communication apprehension (ICA). Hence, the current study investigates CA in L2 (English) and ICA among students pursuing an MA in English at a public university in Bangkok, Thailand. The research results revealed that students with higher ICA have higher CA (trait-like CA). Moreover, to be more specific, MA students in the study who have higher ICA were found to have higher CA in the dimensions of group discussions and meetings. The results provide insight into how students in the study who have different levels of ICA feel in terms of their anxiety when they communicate using English in different contexts.