Although fathers play a key role in helping their children develop ideas about gender relations and close relationships, they have been largely overlooked as a resource to help prevent violence against women. This paper explores some of the reasons why fathers have not been successfully engaged in violence prevention. Engaging fathers to promote wider definitions of masculinity for themselves and their children is presented as a major mechanism by which fathers could help prevent violence against women. The information-motivation-behavior model of change, developed for preventing high-risk sexual behavior, is applied to the area to provide structure for understanding previous and current attempts to engage fathers. Examples of innovative programs are used to highlight the application of this model. (Contains 1 table.)