Background: The importance of engaging parents in health research as co‐researchers is gaining growing recognition. While a number of benefits of involving parents as co‐researchers have been proposed, guidelines on exactly how effective engagement can be achieved are lacking. The objectives of this scoping review were to (i) synthesize current evidence on engaging parents as co‐researchers in health research; (ii) identify the potential benefits and challenges of engaging parent co‐researchers; and (iii) identify gaps in the literature.