The paper will present finds of Roman coins in Southeast Asia that would have arrived along maritime routes. Their dates range from the first to the late fifth/early sixth century AD. In contrast to the well-known influx of thousands of Roman coins into India, the result of trade relations between India and the Roman world, only very few coins were found in Southeast Asia. The discussion will focus on questions of their date of arrival and their function there. It will also include Southeast Asian imitations of Roman gold and silver coins fashioned into jewellery (pendants). Made from tin and gold, they are known mainly from Khlong Thom and Oc Eo. They provide important evidence, assisting our understanding and evaluation of the Roman coin finds in Southeast Asia.