Entry into fatherhood is a challenging period with new responsibilities and changes in family dynamics. Hegemonic imagery of men portray them as capable, confident and able which can disadvantage expectant fathers who often struggle to make sense of the changes occurring around and within their own parenting journey. Although fathers historically have not been included in breastfeeding classes, antenatal education programs can be an opportunity to inform and support them in their new role. Forty-five antenatal sessions for fathers (n = 342) of 1h duration were conducted by five male educators between May 2008 and June 2009 in Perth, Western Australia. A theoretical framework from health promotion literature was used as a guide in the program's development. Fathers in the intervention group gained information about their role, the importance of communication and the benefits of breastfeeding to both mother and baby. An evaluation was obtained from fathers immediately after the session and again at 6 week post-birth, whilst mothers reported on the perception of their partners' support for breastfeeding in the 6 week survey. The aim of this paper is to describe the development and process evaluation of a perinatal education and support program for fathers to assist their partners to breastfeed.