Abstract Among university students, friendships have been found to increase belonging and create opportunities for deeper engagement in learning (Picton et al., 2017). Cross-gender friendships may have benefits that cannot be gained from same-gender friendships, such as increasing understanding about the opposite gender, protection and intimacy (Lenton, 2006). The current study examines the strength of same-gender and cross-gender friendships among 76 students in a psychology module in Singapore. Results indicate that cross-gender friendships did not have a small world network structure, while male-male friendships and female-female friendships displayed small worldness. Findings also showed that cross-gender friendships had the strongest community structure, followed by male-male friendships, and then female-female friendships. The present study contributes to the existing body of literature on the relationship between gender and friendship, by network analysis measures to understand the formation of tight-knit friendship communities across individuals of the same and opposite gender. OSF project contains the following: Data and R code used in the analysis for the paper.