Sub-Saharan African marriage analyses typically ignore the fact that many monogamous men may intend to become polygynous in the future. Analyses using data from the Niger, Burkina Faso, and Senegal Demographic and Health Surveys illustrate that I) currently monogamous men can be divided into two distinct marriage groups based on their future marriage intentions, and 2) future marriage intentions may be associated with reported ideal family size desires. Hence researchers need to consider sub-Saharan African men’s unique roles and relationships in the development of survey questions for men, and in the planning of family planning program initiatives targeted to men.