This book constitutes the refereed proceedings of the 10th EAI International Conference on Future Access Enablers for Ubiquitous and Intelligent Infrastructures, FABULOUS 2026, held in Opatija, Croatia, during October 14–17, 2026.

The 14 full papers included in this book were carefully reviewed and selected from 36 submissions. They are organized into the following topcial sections: Future access networks; Sustainable Communications & Computing Infrastructures; and Smart Environment Applications and Scenarios.