This review aims to identify self-report instruments examining aspects of transition to parenthood for use in practice and research. After performing a literature search in Embase, Medline, Web of Science, Cochrane, PsycINFO and Google Scholar, the Patient Reported Outcome Measures (PROMs) measuring (aspects of) transition to parenthood during pregnancy or up to 1-year postpartum were identified. Following COSMIN guidelines for systematic reviews on PROMs, the quality of the PROM development and PROM content validity was evaluated. From the 129 included studies, 39 PROMs assessed aspects of transition to parenthood. A total of 32 PROMs were included in the evaluation. The development quality of 30/32 PROMS was mostly rated as inadequate and the quality of 15 content validity studies was mostly rated as doubtful. All PROMs received inadequate or doubtful ratings on content validity. Most of the PROMs measuring aspects of the transition to parenthood didn’t include parents’ points of view when developing them. Many PROMs are being used for a long time without reassessing relevance, comprehensiveness, and comprehensibility among parents and/or practitioners. It is recommended that researchers and healthcare professionals assess content validity of the PROM before use with the target population.