Background: Sexual and reproductive health (SRH) outcomes of women within low resource contexts continue to be of concern to policymakers. Notably, sub-Saharan Africa (SSA) continues to lag behind other regions of the world in improving SRH outcomes for women in the region. A key suggested strategy is male involvement through interventions that respect, promote and facilitate women in taking care of themselves and their new-borns. However, factors such as social-cultural barriers may preclude men's involvement in these programmes. There is a need for a context-specific understanding of gender dynamics and interaction and the mechanisms that enhance or impede men's involvement. Methods: We will employ a rapid realist review (RRR) methodology to examine what mechanisms and contextual factors are essential to facilitate the involvement of men in women's SRH programmes in SSA. In keeping with the realist literature we will follow six steps, which will include: (1) developing a theory, (2) developing a search strategy, (3) selecting and appraising documents, (4) extracting data, (5) analysing data and synthesising the evidence, and (6) presenting and disseminating a revised theory. We will also engage with key stakeholders who will provide local contextual insights and with experts in the subject area. The review findings will be shared with relevant stakeholders using a variety of avenues including through publications, at conferences and on social media platforms. Discussion: This review will identify the mechanisms and contextual factors that facilitate or hinder men's involvement in women's SRH programmes in SSA. The rationale for adopting an RRR approach is to help gather the information within a relatively short period to ensure relevance of findings to policymakers in SSA. Results from this work also have the potential to be adapted to the other contexts, for example, Ireland and the UK, which have a growing population of people from SSA.