Cyber-Physical Systems (CPS) can be defined as networks of interacting systems of systems that integrate both computational and physical processes. Such systems are playing an increasingly prevalent and important role within modern computational infrastructure, with the US National Science Foundation (NSF) identifying CPS as a key area of research. CPS' span a huge variety of domains, including: Data centers Robotics Automotives Wireless sensor networks Mobile computing These systems pose many novel challenges to both researchers and practictioners in areas such as security, networking, energy-efficiency, resource allocation, control techniques, e-Health, and cloud computing. The 2014 IEEE workshop on Real-Time Cyber-Physical Systems (RTCPS) seeks to bring together both academics and industrial practicioners to discuss the latest challenges and research in the real-time aspects of Cyber-Physical Systems.