Open peer review (also called "public peer review", "transparent peer review") denotes several, closely related forms of scholarly peer review. Out of over a hundred definitions/forms, a few can be mentioned:
Open-identity or attributed peer review (as opposed to anonymous peer review)Open-disclosure or public peer review, where the peer review contents are publicly availableOpen-invitation or post-publication peer review, where anyone interested can contribute to the peer review process. Can also be a continuous process after publication.