Interprofessional collaboration is important to address the rising care demands in long-term care (LTC) for older people, as it yields positive outcomes for clients and care professionals. Yet, previous research has shown that clients and family members are insufficiently involved in the design and implementation of interprofessional quality improvement. Given the growing emphasis on relationship-centered care, the lack of involvement of clients and family members in quality improvement initiatives is remarkable. Our action research addresses this gap by involving clients and family members in three quality improvement projects in two LTC organizations through Communities of Practice (CoP). CoPs are a mechanism for interprofessional collaboration that can address complex problems through co-creation and collective learning among stakeholders. Findings show that CoPs are a promising method for quality improvement in LTC. The three projects each address a question regarding better use of quality data with the aim of providing a higher quality of care for the client. It is anticipated that the involvement of clients and family members in CoPs will lead to better outcomes, tailored to their wishes and needs. In this presentation, we will describe the co-creative process of quality improvement in CoPs, making the connection to previous research on barriers and facilitators for interprofessional quality improvement in LTC.