The Women’s Empowerment in Agriculture Index (WEAI) measures the empowerment, agency, and inclusion of women in the agricultural sector and comprises two subindexes. The first assesses empowerment of women in five domains, including (1) decisions about agricultural production, (2) access to and decisionmaking power about productive resources, (3) control of use of income, (4) leadership in the community, and (5) time allocation. The second subindex measures the percentage of women whose achievements are at least as high as men in their households and, for women lacking parity, the relative empowerment gap with respect to the male in their household. This article documents the development of the WEAI and presents pilot findings from Bangladesh, Guatemala, and Uganda.