Purpose: Rehabilitation professionals support people with traumatic brain injury to return to meaningful participation in life and societywhich now includes the use of social media. However, the role of health professionals in supporting the use of social media by adults with traumatic brain injury is not yet known. This study aimed to investigate the experiences and views of rehabilitation professionals on the use of social media by people with traumatic brain injury during rehabilitation. Method: Two focus groups were conducted and analysed qualitatively for content themes. Results: Eleven rehabilitation professionals, including allied health, recreational therapy, and service management, took part in this study. Participants identified potential benefits to people with traumatic brain injury using social media, including reduced social isolation. However, they expressed concerns about social media risks relating to the vulnerability, exploitation, and reputation management for people with traumatic brain injury. Rehabilitation professionals viewed their role as being to protect people from these increased risks of harm, either through imposing restrictions on social media use or responding to problems after these occurred. Conclusion: A knowledge translation approach might help guide and support rehabilitation professionals in enabling adults with traumatic brain injury to safely access and experience the benefits of meaningful engagement in social media during rehabilitation.