The European Conference on Integrated Optics 2023 will take place at the University of Twente, Netherlands from 19 April to 21 April 2023. The conference focuses on leading-edge research on integrated optics, optoelectronics, and nano-photonics and gathers experts from academia and industry to show their latest technical results, and showcase their products and services. The application scope is broad and it ranges from tele/datacom communications, optical interconnects, and (bio) optical sensing applications to more disruptive areas such as quantum computing and mid-IR photonics.