Although the support provided by extended family members to university students has recently been more investigated, it is rarely considered as an element worthy of analysis in its own right. Situated in an international context, this literature review provides a map of research on the support of extended family members to university students and links research to university practitioners and policy makers as a way to promote diversity. The argument is that by facilitating students' support networks, more effective diversity policies can be implemented at the institutional level. Employing the concepts of extended family, funds of knowledge and social support, the review identifies social support that achieves positive outcomes and support which outcomes are less effective. Selected articles (22) were classified, synthesised and analysed by the author. The paper discusses the role of extended families in relation to four sub-groups of students: traditional; non-traditional; international and dropout. The review shows that: a) social support is a cultural-based practice; b) research emphasises positive effects of social support; c) research tends to focus on ethnic minorities, and d) there is an unclear separation between parental and the support provided by extended family members. The paper concludes with a discussion of the implications for further research and practice.