Despite the proliferation of research, the population of women entrepreneurs is vastly understudied. This is surprising considering women are one of the fastest rising populations of entrepreneurs, and contribute significantly to innovation, job creation, and economies around the world. Why are women entrepreneurs comparatively understudied? What have we learned about women entrepreneurs in the past few decades? What are the future research directions? This article addresses these questions. It begins with a brief overview on the extent of research on women's entrepreneurship and considers reasons why they are under-studied. The article also explores empirical findings in terms of similarities and differences between men and women entrepreneurs, then it concludes with suggestions for future research.