This article explores the impact of gender equality on economic growth. In particular, we focus on the multidimensional nature of gender equality with the object of identifying the relative salience of different aspects of equality. Using exploratory factor analysis on five measures of gender equality, we identify two distinct dimensions: equality of economic opportunities and equality in economic and political outcomes. Regression analysis conducted on an unbalanced panel of 101 countries taken over nonoverlapping five-year periods from 1990 to 2000 reveals that a standard deviation improvement in equality in economic opportunity increases growth by 1.3 percentage points and a corresponding improvement in participatory equality improves growth by an average of about 1.2 percentage points. However, this impact is contingent on a country's stage of development: while developing economies experience significant improvements in growth from greater equality in opportunity, developed societies see significant improvements resulting from greater equality in outcomes.