ObjectivesThis study aimed to address the negative impacts of adverse childhood experiences (ACEs) on Aboriginal children and young people in out-of-home care (OOHC) using mindfulness-based interventions (MBIs) delivered via virtual reality (VR). MBIs can improve emotion regulation and executive functioning, but engagement can be challenging, especially for children with other health conditions and trauma.MethodVirtual reality goggles with a head-mounted display, head tracking, and handheld controls were used. Measures included heart rate variability (HRV), the State Mindfulness Scale, the Mindful Attention Awareness Scale, and the Behaviour Rating Inventory of Executive Function 2. The procedure involved a baseline assessment of state mindfulness, a 5-min sitting baseline HRV measurement, VR orientation, exploration of the VR landscape, a mindfulness body scan, a second HRV measurement during the body scan, and completing a post-VR questionnaire.ResultsNo significant improvement in state mindfulness was found as measured by the State Mindfulness Scale. However, a significant improvement with moderate effect size was seen pre-to-post-intervention on the Mindful Attention Awareness Scale (p = 0.007, d = − 0.69). We also explored the impact of age, sex, and diagnosis on the intervention and found significant improvements in state mindfulness across subgroups. HRV did not show a significant change pre-to-post-intervention.ConclusionsOur study highlights the potential for MBI-VR to improve mindfulness in Aboriginal children and young people in OOHC who have experienced abuse and trauma. Brief mindfulness sessions were effective at enhancing state mindfulness as measured by the MAAS; the older participants and those with mental health concerns benefitted the most. Further research with more diverse samples is needed to validate the findings and examine potential interactions between demographic and clinical factors.PreregistrationThis study is not preregistered.