Purpose:  This systematic review evaluates the effectiveness of MYmind, a mindfulness-based intervention for Autistic youth (aged 8–23) and their parents. The review applies the neurodiversity paradigm as a critical lens to assess how the programme supports behavioural, emotional, and mindfulness outcomes in line with strengths-based approaches to autism. Methods:  Following PRISMA 2021 guidelines, a comprehensive literature search (January 30 to February 4, 2024) identified four eligible studies. Data were extracted using a structured protocol, and study quality was assessed using adapted CASP checklists for randomized controlled trials and cohort studies. Results:  MYmind showed minimal impact on mindfulness or emotional wellbeing among Autistic youth, though improvements in social skills were observed. Parents reported greater benefits, including increased mindfulness and confidence. However, the programme’s effectiveness in supporting emotional and behavioural domains remained unclear for both groups. Conclusion:  MYmind demonstrated limited alignment with neurodiversity paradigm informed principles, particularly in addressing the individual needs of Autistic youth. The review recommends future adaptations to better reflect neurodivergent priorities and offers guidance for practitioners implementing mindfulness-based interventions in autism-supportive settings.