Background <p>Acquired brain injury (ABI) can pose significant challenges, particularly during the transition from rehabilitation to independent living. Peer support, provided by individuals with similar experiences, may enhance self-management, emotional well-being, and coping strategies. Understanding healthcare professionals’ perspectives is essential for successful implementation in post-rehabilitation ABI care.</p> Methods <p>This qualitative study involved two focus groups with multidisciplinary healthcare professionals, including disciplines included rehabilitations specialists, physiotherapists, psychologists, social workers, speech therapists, and occupational therapists, from a Dutch rehabilitation unit. Discussions explored perceptions of integrating peer support. Data were analyzed thematically using Atlas.ti.</p> Results <p>Eleven professionals participated, acknowledging the value of peer support in providing emotional validation, role modeling, and practical guidance. Peer supporters were seen as crucial in addressing ABI's invisible consequences, such as cognitive and emotional challenges. Concerns included professional boundaries, quality assurance, and peer supporter well-being. Emotional stability, cognitive skills, and self-awareness were identified as essential to prevent burnout. Clear matching criteria and structured coordination were deemed necessary. Training, role clarity, and professional supervision were highlighted as key factors for successful implementation.</p> Conclusions <p>Healthcare professionals view peer support as a valuable addition to ABI care. Based on the findings of this qualitative study, a structured approach, including training, defined roles, intervision and supervision, is recommended to ensure safe and effective integration across the entire patient journey. Further research is needed to evaluate the effectiveness of peer-support interventions.</p>