We analyse the intonation of polar questions (PQs) in Cypriot Arabic (CYA), a severely endangered peripheral variety of Arabic spoken by Cypriot Maronites, the intonation of which has not been formally examined before. We compare the patterns in CYA with those in Cypriot Greek (CYG) and those in Syrian Arabic (SYA) to search for possible differences with the latter, as a result of centuries of isolation, and similarities with the former, as a result of centuries-long contact on the island of Cyprus. We elicited PQs in CYG and CYA through a map task and analysed them combining quantitative modelling of intonational contours with conventional Autosegmental-Metrical tools of tune-text alignment. The results reveal that CYA questions are phonologically very similar to those in CYG, albeit with some differences in their fine phonetic detail. Polar questions in the Cypriot varieties of both languages have a L* nucleus followed by H-L% edge tones. This pattern is phonologically different from the pattern in SYA questions, which has been reported as a L* or a L*+H nucleus followed by a final rise. We discuss the implications of these findings for a theory of prosodic contact.