Photovoice methodology centralises the voices of marginalised populations within health systems using photography and critical dialogue to record, reflect and communicate community health issues. This paper presents findings from applying photovoice to explore and document the lived experiences of groups of marginalised populations in six low- and middle-income countries: Cambodia, Ghana, Nepal, Sierra Leone, Uganda and Zambia. The strengths of using photovoice included: creating safe spaces for communication; community solidarity and stakeholder engagement; community ownership of actions and advocacy; developing new soft skills and confidence; capturing hidden community challenges; and taking collective action. Suggestions for use in future photovoice studies include: providing space for the exploration of contextual factors before implementation; developing a capacity strengthening plan to ensure participants have the competencies required to effectively take part in research and dissemination; considering the use of non-visual methods alongside photovoice when needed; and having in place partnership structures between researchers and participants that facilitate power sharing, agency, empowerment and joint decision making. Lastly, we present recommendations that have the potential to strengthen the value and use of photovoice as more than a participatory method but also a vehicle for individual, relational and health systems improvements.