This book constitutes the refereed conference proceedings of the 6th EAI International Conference on Emerging Technologies for Developing Countries, AFRICATEK 2023, held in Arusha, Tanzania, during December 11–13, 2023. The 11 full papers in this book were carefully reviewed and selected from 39 submissions. They were organized in topical sections as follows: smart infrastructure and urban management; data security and digital technologies; economic growth and social development; health and well-being; and sustainability and environmental management.