ABSTRACT Objectives This study aimed to assess the knowledge, attitude, and practice of the healthcare professionals and paid caregivers toward non-pharmacological interventions (NPIs) for managing behavioural and psychological symptoms of dementia (BPSD) in Australian residential aged care homes (RACHs). Methods A cross-sectional, online survey was completed by RACH staff and physicians over the period 6 March-31 August 2023. Descriptive statistics were used to present the results. Results Ninety-six respondents participated (41.7% aged 35–54 years, 80.2% female, 38.5% nurses). While 50–65% of the respondents were extremely familiar with 15 of NPIs, only 22% believed there was a sufficient funding for their implementation, and 6% felt there were sufficient human resources. Although 66% of the respondents viewed NPIs as more useful than medications, only 46% expected consistent positive outcomes from NPIs. The most used NPIs were redirection, behaviour management, and validation therapy. Conclusions The study highlights that barrier such as inadequate funding, limited human resources, skepticism about NPIs’ effectiveness, unfamiliarity with certain NPIs, and unfavourable attitude toward NPIs are likely to slow NPI adoption for BPSD management. Clinical implication To improve practice, it is essential to address these barriers through targeted education, and training, increased funding, and enhancement of the workforce.