Unintentional injuries are a leading public health problem for children, particularly among those living at lower socioeconomic levels. Parents play an important preventive role, and the aim of this study was to examine fathers’ views on the role of their family financial situation in preventing children’s injuries. In-depth interviews were conducted with 15 fathers of children 2 to 7 years living in western Canada. Questions solicited fathers’ views about their financial situation and their child injury prevention efforts. Data analysis was underpinned by masculinity theory and guided by constant comparative grounded theory methods. Findings included that fathers living with fewer financial limitations emphasized use of safety equipment and aligned themselves with provider and protector masculine ideals. Fathers with moderate financial constraint described more child-centered safety efforts and efforts to manage finances. Those facing greatest constraint demonstrated aspects of marginalized masculinities, whereby they acknowledged their economic provider limitations while strongly aligning with the protector role. These findings hold relevance for development of interventions aimed at reducing child injury risk inequities. Taking into account how masculinities may shape their beliefs and practices can inform design of father-centered interventions for men living at different points on the socioeconomic spectrum.