This course offers an in-depth exploration of modern principles, design strategies, and technologies in water distribution systems engineering. Through 14 comprehensive lectures, participants will enhance their understanding of hydraulic and water quality modeling, system components, pressure management, and energy optimization. The course also covers asset management, leak detection, non-revenue water reduction, and smart water network technologies. Emphasis is placed on sustainability, digitalization, and resilience in water infrastructure. Designed for engineers and water professionals, this program equips learners with the technical expertise and innovative tools needed to design, manage, and optimize efficient and sustainable water distribution systems.