The global trend of establishing digital repositories in institutions of higher education hasaccelerated as they are becoming important to research and scientific institutions forevaluating criteria. Institutional repositories can also help promote the practical impacts ofresearch, which is not only beneficial to the community but can help demonstrate theimportance of the work and enhance the researcher’s reputation. As of August 2019, theDirectory of Open Access Repositories holds 4 140 repositories, including 15 from Algeria,consisting theses, conference papers, books and journals. This paper aims to discover thebenefits and impacts of institutional repositories and their role in supporting scientific researchand enhancing the global visibility and impact of grey literature through answering the followingquestions: What are the best practices to improve the visibility of grey literature? How can weachieve high grey literature visibility in Algerian institutional repositories?