This book constitutes revised selected papers from the 4th International Workshop on Distributed Computing for Emerging Smart Networks, DiCES-N 2023, which took place in Bizerte, Tunisia, on May 27, 2023. The 6 full papers included in this book were carefully reviewed and selected from 13 submissions. The book also contains one invited talk. The contributions focus on vehicular networks and emerging technologies and cyber safety and security of intelligent transportation systems.