Food insecurity, the inconsistent access to safe, affordable, and nutritious food, is a growing public health concern (1). The antenatal period, spanning pre-pregnancy to postpartum life-stages, is critical for shaping lifelong health (2). Whie antenatal food insecurity research has predominantly focused on mothers (2), the increasing recognition of fathers’ evolving roles in the antenatal period (3) highlights the need to understand how expectant fathers experience and manage food insecurity. Their perspectives are fundamental to supporting family food security and ensuring equitable nutrition outcomes. This study aims to explore the perceptions, attitudes, and experiences of food-insecure expectant fathers in Victoria, Australia regarding the impact of food insecurity during their partners pregnancy. Using a narrative inquiry approach, this qualitative study is interviewing a cohort of expectant fathers (n = 15) in Victoria, Australia. In-depth semi-structured interviews are being conducted at two timepoints: during pregnancy and three-months postpartum. First round interviews are currently underway and will be completed by December 2025. Preliminary analysis of interviews conducted to date identifies key themes, including stress and anxiety for adequate food provisioning, intergenerational influences and conflicts, isolation and invisibility of expectant fathers, limited structural support, and pragmatic acceptance whereby coping was seen as the only option. These themes are shaped by participants narratives, reflecting how diverse family structures, socioeconomic contexts, and cultural backgrounds influence their experiences. The preliminary findings offer valuable insights into how food-insecure expectant fathers reflect on the challenges of food provision and fatherhood during a critical life transition. By centring fathers’ voices during pregnancy, this study contributes to a deeper understanding of paternal involvement in family nutrition and food security. These findings will inform the development of inclusive public health strategies to better engage and support expectant fathers, promoting long-term food security for families.