This book constitutes the refereed proceedings of the 15th EAI International Conference on Bio-inspired Information and Communications Technologies, BICT 2024, held in Quzhou, China, during August 15–16, 2024. The 16 full papers included in this book were carefully reviewed and selected from 52 submissions. They were organized in topical sections as follows: Asia-Pacific Workshop on Molecular Communications; Bio-inspired ICT; and ICT-inspired Biomedicine.