Due to globalization and migration, an increasing number of people speak with a foreign accent. An accent is difficult to correct and is often used by listeners as a social cue in determining the cultural background of speakers. Moreover, it can have negative consequences for speakers, e.g., false ascription of lower competencies in the foreign language. This article provides an overview of relevant empirical findings on the perception and evaluation of effects of foreign accents in intercultural communications as well as of approaches for intervention.