Background: Older adults with dementia are frequent users of subacute hospital services and are at risk of functional and cognitive decline as well as reduced socioemotional wellbeing during admission. The Montessori method offers a person-centred approach that promotes wellbeing through meaningful engagement,1 however its use by hospital volunteers to support patients with dementia has received limited attention. Aim: This study aimed to evaluate a Montessori training program for volunteers engaging patients with dementia across two subacute Geriatric Evaluation and Management wards in a local public hospital. Methods: A mixed-method evaluation. Data collection included baseline staff surveys, post-training volunteer feedback, focus groups with both staff and volunteers, and ward observations. Quantitative data were analysed descriptively, and qualitative data were thematically analysed and triangulated. Results: A total of 9 volunteers and 13 staff participated in the evaluation. While baseline surveys indicated limited staff clarity surrounding volunteer roles and low confidence in supporting them, post-training findings indicated a marked shift, with clinical staff recognising volunteers as essential contributors to socioemotional dimensions of care that are difficult to provide within clinical workloads. Volunteers reported increased capability and confidence in applying Montessori principles, and facilitating meaningful engagement with older patients. Conclusion: The findings demonstrated that Montessori-informed training can strengthen volunteers’ capacity to deliver meaningful engagement for patients living with dementia. Delivering Montessori-based interventions through hospital volunteers may offer a feasible strategy to enhance the deliver of person-centred care and socioemotional support alongside clinical care. 1. Malone, et al Dementia. 2007;6(1):150–7. 10.1177/1471301207079099