This paper investigates the gender dimension of income inequality in the Nordic countries. While income inequality is commonly studied at the household level, we examine individual-level inequality in order to measure differences between genders and within genders. We estimate Gini coefficients for men’s and women’s disposable and labour incomes separately, and study the trends in gender gaps at different percentile levels. Our results emphasize that important gender differences in inequality are not captured by the commonly used household inequality measures, but need to be assessed employing individual-level inequality measures.