Patient and public involvement (PPI) in patient safety research is encouraged by funding agencies and advocacy organizations. The goal of this review was to examine the frequency and quality of PPI reporting in patient safety research using the Guidance for Reporting Involvement of Patients and the Public (GRIPP2) checklist. Of the 82 included studies, only five reported using the GRIPP2 checklist and only three reported on all five aims of PPI (e.g., aim of PPI, the extent to which PPI influenced the study). Publishers, researchers, and funders are encouraged to require use of PPI and the GRIPP2 checklist to improve patient and public involvement.