摘要:Females and males often migrate at diferent rates . Ofcial data on sex-specifc international migration fows are missing for most countries, prohibiting comparative measures to identify and address inequalities . Here we use six methods to estimate male and female fve-year bilateral migration fows between 200 countries from 1990 to 2020. We validate the estimates from each method through correlations of several migration measures with equivalent reported statistics in countries that collect fow data . We fnd that the Pseudo-Bayesian demographic accounting method performs consistently better than the other estimation methods for both female and male estimated fows . The estimates from all methods indicate a decline in the share of female migration fows from 1990–1995 to 2005– 2010 followed by a recovery over the decade since 2010.