The advent of quantum technologies, spanning sensing, communication, and computing, has driven rapid advances in the discovery and engineering of novel quantum light sources. From single molecules and quantum dots to defect centers in solid-state systems, new classes of quantum emitters are enabling previously inaccessible regimes of light–matter interaction and opening pathways to transformative applications. Alongside these developments, emergent quantum phenomena continue to reshape our understanding of coherence, entanglement, and nanoscale optics. This symposium aims to bring together scientists from diverse disciplines working on quantum emitters and related phenomena, fostering cross-fertilization between fields such as materials science, optoelectronics, and quantum engineering. By uniting expertise across platforms, including single molecules, semiconductor nanostructures, and defect-based systems, the meeting seeks to accelerate discovery and innovation. It will provide a forum for discussing the latest scientific breakthroughs, experimental techniques, and theoretical insights in these rapidly evolving research areas, bridging fundamental science with emerging quantum technologies.