This thesis investigates how political masculinities are produced, sustained, and contested within Fiji's multi-ethnic, postcolonial state. Drawing on extended political ethnography and over 200 interviews conducted between 2023 and 2024, it examines the gendered infrastructures of political parties, rituals of authority, and affective performances that underpin leadership and legitimacy. Rather than treating masculinity as an identity category or personal trait, the thesis conceptualises it as a political infrastructure, embedded in institutions, encoded in everyday practice, and responsive to shifts in power.