This book constitutes the refereed proceedings of the First International Conference on Future Internet Technologies and Trends, ICFITT 2017, held in Surat, India, August 31 - September 2, 2017. The 28 full papers were selected from 66 submissions and present next-generation requirements for extremely high-speed data communications, IoT, security, broadband technology, cognitive radio, vehicular technology, gigabit wireless networks, data management, and big data.