Privacy Impact Assessment (PIA) methods guide the implementation of Privacy-by-Design principles and are provisioned in the European Union’s General Data Protection Regulation. As implementing a PIA is still an intricate task for organizations, this paper provides a critical review and assessment of generic PIA methods proposed by related research, Data Protection Authorities and Standard’s Or-ganizations. The evaluation framework is based on a comprehensive set of criteria elicited through a systematic analysis of relevant literature. This paper also identifies elements of PIA methods that re-quire further support or clarification as well as issues that still remain open, such as the need for im-plementation of supporting tools.