Peer support was developed in the 1960s as a concept within the Independent Living-Movement and has since been applied successfully while working with disabled people. The methods used in peer support rely on counseling, assistance and support delivered to individuals by people, who faced similar issues in their individual lives, and is characterised through different goals. On the individual level, the goal is to promote self-determination and empowerment, while the goal on the collective level is to rebut existing structures which promote discrimination and exclusion. The potential of peer support as an approach is growing increasingly interesting for other spheres of activity within the field of social work, such as in providing support to homeless people. The work at hand intends to establish the possibilities and challenges arising from applying peer support in homelessness services, by using the example of Housing First. Following subject-specific literature, the attempt is to locate Housing First and peer support, establish possible similarities, ambivalences and boundaries, and to combine these in order to draw conclusions regarding the implementation of peer support in Housing First-projects.