This journal article explores facets of youth peer support to address homelessness among youth. The journal article provides a description of the structure, processes, and preliminary outcomes of an intentional peer support program delivered in the context of tertiary prevention of youth homelessness in a large Canadian urban setting. Pre-post findings for a cohort of 28 youth are reported in key mental health and community engagement domains and qualitative data from interviews with participants, peer supports, and staff are presented. (author abstract modified)