The aim of our study was to investigate the cross-cultural differences in working memory. The sample included 289 adolescents from Russia and Kyrgyzstan. Working memory was measured using the Spatial Working Memory task from the CANTAB battery. We have not found any significant differences in working memory measures by culture reference. At the same time, Kyrgyz males outperform females in the Spatial Working Memory task. There was no significant age-by-country interaction. In both groups working memory performance increases with age.