ObjectiveThe Osteoarthritis Chronic Care Program (OACCP) has been implemented in Australian public hospitals to deliver best‐evidence OA care. It is important to ensure that the OACCP continues to deliver evidence‐based OA care as intended. We aimed to identify barriers and enablers to delivering the OACCP, prioritise the barriers, and generate strategies to address them.MethodsThis study provides a worked example of a seven‐step theory‐informed co‐design framework. We invited OACCP coordinators to participate in semi‐structured interviews (analysed thematically) and complete a questionnaire to identify barriers and enablers to delivery of the OACCP. We then invited a broader group of stakeholders (OACCP coordinators, health managers, policy makers, consumers, researchers) to prioritise the barriers via a short survey (survey 2). We held five co‐design workshops where we mapped the priority barriers to the Theoretical Domains Framework and developed strategies to address them.ResultsSixteen coordinators were interviewed and the main barriers identified were: 1. patients often have beliefs that are inconsistent with best‐evidence care; 2. there are aspects of clinical care that are not delivered optimally; and 3. system level factors are a barrier to optimal patient care and sustainability of the OACCP. We co‐designed a plan for action with patient educational materials, shared decision‐making tools, and health professional education and training.ConclusionOur worked example of co‐design used a theory‐based, data driven approach with key stakeholders, identified and prioritised barriers to the delivery of the OACCP, acknowledged enablers, and generated a plan for feasible strategies to improve the program.