Objective: It has been widely accepted that positive identity construction after traumatic brain injury (TBI) results in better rehabilitation outcomes. However, there is limited information available on the linguistic resources that individuals use to construct such identities, and how the context in which they are communicating may influence this construction of self. This research uses the tools of systemic functional linguistics to examine the linguistic construction of identity in an individual with moderate-severe chronic TBI.Method: The individual participated in two different conversations, one with a male stranger and the other with a female brain injury researcher, and the conversation transcripts were analyzed using tools of systemic functional linguistics.Results: The identities communicated and linguistic construction of self in both contexts had many similarities. In both conversations, the participant presented a positive perspective of his post brain injury life, and he described similar relation-ships. Nevertheless, there were also noteworthy differences. With the stranger, he distanced himself from the topic of the injury by not discussing his pre-injury self or his injury-related difficulties. However, with the researcher, he contrasted a negative pre-injury persona with his current, improved post-injury self. Additionally, when conveying information about his relationships to the stranger he projected a more powerful and in-charge identity than with the researcher.Discussion: An analysis of language using systemic functional linguistics can reveal important information about how individuals communicate their identity. Additionally, the identities communicated can be highly variable depending on the conversation partner, the context of the interaction, and sociocultural gender norms. Conclusion: The results suggest that contextual influences on identity construc-tion have important clinical implications for rehabilitation.