This volume comprises selected peer-reviewed proceedings of 15th International Congress on Advances in Civil Engineering (ACE 2023) was held in Famagusta, North Cyprus in September 2023. This proceedings covers all disciplines of Civil Engineering classified under six main topics: Construction Management, Hydraulics, Geotechnics, Materials, Structures, Transportation, and Civil Engineering Education. It covers highly diverse research topics including investigation in the areas of innovative materials in concrete production, recycling of waste in the construction industry, fibre reinforced and high strength concrete, soil stabilization, problematic soils of semi-arid and arid regions, deep foundations, staged construction modelling, repair and maintenance of reinforced concrete, earthquake engineering and seismic retrofitting, coastal and harbour engineering, water resources management, hydrology & hydraulics engineering, traffic engineering and urban transport, life cycle cost analysis, decision making strategies.