Privilege-related issues are likely to arise in international arbitration procedures, as these often involve actors from a variety of legal backgrounds. No international standard of privilege exists, and thus arbitration tribunals have had no option but to identify standards applicable to the specific issues of privilege on a case by case basis. While privilege in international arbitration is frequently discussed among commentators, measures taken to mitigate the lack of guidance to tribunals have been minimal. This article seeks to identify trends in international arbitration regarding privilege-related issues. To this end, this article examines both commercial and investment cases, and reviews recently published doctrine on the subject to take stock of the way privilege-related issues are dealt with in practice. First, the article starts by looking at the instances in which privilege issues arise. Second, it looks at how arbitral tribunals determine the standard applicable to privilege claim. Third, the article also looks at how arbitral tribunals define different types of privilege. Fourth, it tries to identify the practical proposals made by tribunals to manage issues of privilege. Finally, the article provides a few concluding remarks.