Background: People with intellectual disabilities are entitled to equitable access to psychological support. Traditional therapeutic approaches often rely on a person's ability to verbally articulate a description of their life, which can be particularly difficult for emotionally salient information. Methods: A systematic literature review was undertaken to determine the evidence base underpinning the use of participant-produced photography within therapeutic settings. Evidence across a range of specialisms was examined in order to extrapolate areas of best practice and make recommendations for its implementation alongside people with intellectual disabilities. Results: A systematic search of peer-reviewed journals identified 13 relevant documents. Participant-produced photography showed promise, although evidence pertaining specifically to people with intellectual disabilities was sparse (n = 2). Conclusion: Participant-produced photography within therapeutic settings shows promise for people with intellectual disabilities. Methodological limitations made it difficult to derive firm conclusions regarding the effectiveness of different approaches. Implications for clinical and research practice are discussed.