The aim of this paper is to show the differences between Gender Economics (GE) and Feminist Economics (FE). The first part will deal with a historical reconstruction of these differences. The central part of this chapter will specifically illustrate Gender Economics, Feminist Economics, Feminine Economics, and the Austrian approaches to gender studies within economics. Gender Economics is an approach mainly focused on the role of gender in social and economic problems of the public life (such as labor, migration, household, laws, civil rights) as well as in a private contest (housekeeping, sexuality, and so on). Feminist Economics, Feminine Economics and Austrian economics develop in different ways a much more challenging perspective: they promote a deep revision of the mainstream economic theory founded on the optimization of an expected utility function that has been shaped into a masculine perspective.