This two-volume set LNCS 10911 and 10912 constitutes the refereed proceedings of the 10th International Conference on Cross-Cultural Design, CCD 2018, held as part of HCI International 2018 in Las Vegas, NV, USA, in July 2018. The total of 1170 papers and 195 posters included in the 30 HCII 2018 proceedings volumes was carefully reviewed and selected from 4373 submissions. The 36 regular papers presented in this volume were organized in topical sections named: cross-cultural design methods and tools; cross-cultural product design; cultural Differences; and culture, emotions and design.