Research has demonstrated beneficial effects on children’s development of both breastfeeding and fathers’ involvement. Evidence has also shown that breastfeeding could influence paternal behaviors. Since there is little data available on paternal representations of breastfeeding and on its effects on paternal involvement, the aim of the present study is to bridge that gap by examining fathers’ perceptions of their relationship with their infant in the context of breastfeeding. Semistructured interviews were carried out with 43 fathers of an infant who had been exclusively breast-fed for a minimum of 6 months. These were transcribed and analyzed using thematic analysis. The fathers identified some impacts of breastfeeding on the father–infant relationship. Feeding their infant themselves appeared to be a determining moment in this relationship. These results highlight the relevance of supporting early father–infant bonding in the breastfeeding context.