To date, the attempt to boost cognitive skills in the general population has failed. However, it is still possible that some cognitive training regimens exert a positive influence on specific populations, such as older adults. In this meta-analysis, we investigated the effects of working memory training on older adults’ cognitive skills. Three meta-analyses were run. While large effects were found for the trained tasks, only moderate and near-zero effects were obtained in the near-transfer and far-transfer meta-analyses, respectively. While confirming the difficulty in obtaining transfer effects with cognitive training, these results cast serious doubts about the practical utility of near-transfer effects for older adults’ everyday life too.