Finally, 21 studies have been included in the review, comprising of nine review articles and 12 individual studies, with most studies stemming from the usa. results show that pn models are consistently associated with improvements in a wide range of health related outcomes, mostly with timely access to healthcare services. implementation strategies and measurements used in assessing pn models show hetero- geneity between studies. however, a number of consistencies were found including; a longitudinal approach, using of non- clinical navigators who share similarities to the participant groups and who engage as facilitators. additional considera- tions for gender and age may further improve the outcomes. conclusions: in order to improve on the success of the pn models and their application in removing barriers to healthcare access for people experiencing homelessness, more research is needed that focuses on the feasibility, acceptability and scalability of the approach outside the usa. key messages: people experiencing homelessness experience considerable barriers in accessing healthcare service leading to dispro-portionately larger burden of disease as well as lower life expectancy. patient navigation models have a great potential in removing barriers and facilitating timely access to healthcare services in people experiencing homelessness