Wireless ad hoc networks have attracted considerable attention from the research community in the last several years. Now that many of the fundamental topics and challenges have been deeply investigated, the focus is partially shifting to new issues, which include data-centric operations, autonomous organization, service creation/support, continued operation under intermittent connectivity, optimization, control, cross-layer design and application scenarios (road safety, disaster recovery, smart cities, energy efficient buildings, sensors, actuators, wearables, etc.). Moreover, novel and exciting challenges are introduced by commercial systems adopting the ad hoc paradigm, from mesh, sensor and vehicular networks, and by associated delay-tolerant and opportunistic scenarios. Furthermore, today's market explosion of smart phones is creating new opportunities for wireless ad hoc social networks, the study of which requires the combination of opportunistic ad hoc networking aspects with the understanding of social behavior and mobility patterns. MED-HOC-NET 2014 focuses on all the ramifications of ad hoc networking research, not only the classic topics of location management, security/privacy, topology optimization/control schemes and resource allocation, but also paying attention to novel emerging areas such as green networking, safety/surveillance, underwater communications, and coexistence among heterogeneous devices. The Workshop is endorsed by the IEEE Communication Society and its Technical Committees for Ad Hoc & Sensor Networks, Information Infrastructure & Networking, and Radio Communication, and by IFIP.