Background: Older gay men face unique health challenges shaped by the intersection of ageing, sexual orientation, and systemic discrimination. Despite advances in LGBTQIA+ rights, health and aged care systems often remain ill-equipped to provide inclusive, person-centred support. There is limited research that actively involves older gay men in designing healthcare responses tailored to their lived experiences. Aim: This project aims to co-design a person-centred model of care with older/ageing gay men, ensuring that their health needs, values, and priorities directly shape future health and aged care policies. Methods: Guided by the Person-centred Practice Framework (McCance & McCormack, 2021), a co-design workshop was held in December in New South Wales, Australia with 12–18 gay men aged 45 and over. A participatory action research approach was used to ensure inclusivity, equity, and community ownership. The workshop structure included: (1) sharing lived experiences of ageing and health, (2) identifying health concerns and barriers to care, (3) prioritising needs through group dialogue, and (4) co-creating solutions for more inclusive healthcare pathways. Data captured through notes, visual artefacts, and audio recordings, followed by thematic analysis in partnership with participants, highlighted key issues for co-designing more inclusive health systems for older gay men. Results: The workshop identified priority health needs in areas such as physical health, mental health, sexual wellbeing, social connection, and experiences of discrimination. The outcomes include a co-created set of principles and pathways for inclusive healthcare. Developing the PRIDE model of care is the next phase of the study, an overview of which will be included. Conclusion: This study generated actionable insights to strengthen health equity for older gay men and inform a model of care with direct relevance for policy, education, and service design. By placing lived experience at the centre, it advances both person-centred practice and LGBTQIA+ health inclusion internationally.