The 13th ACM Workshop on Hot Topics in Networks (HotNets 2014) will bring together researchers in computer networks and systems to engage in a lively debate on the theory and practice of networking. HotNets provides a venue for debating future research agendas in networking and for presenting innovative ideas that have the potential to significantly influence the community. We invite researchers and practitioners to submit short position papers. In particular we are interested in papers that foster discussions that can shape research agendas for the networking community as a whole. Thus, we strongly encourage papers that identify fundamental open questions, or offer a constructive critique of the state of networking research. We also encourage submissions of early-stage work describing enticing but unproven ideas. Submissions can, for example, advocate a new approach, re-frame or debunk existing work, report unexpected early results from a deployment, or propose new evaluation methodologies. Novel ideas need not necessarily be supported by full evaluation; well-reasoned arguments or preliminary evaluations can be used to support their feasibility. Once fully developed and evaluated, we expect the work to be published at conferences such as SIGCOMM, SOSP, OSDI, SenSys, NSDI, MobiCom, MobiSys, PODC, CoNEXT, or INFOCOM. Short papers on finished work will be a better fit with the short papers track at CoNEXT. HotNets takes a broad view of networking research. This includes new ideas relating to (but not limited to) data center networks, home and enterprise networks and wide area networks using a variety of link media (wired, wireless, acoustic) as well as social networks and network architecture. It encompasses all aspects of networks, including (but not limited to) provisioning and resource management, economics and evolution, robustness and security, topology, mobility, interactions with applications, usability of underlying networking technologies, energy, performance, measurement and diagnosis, and hardware. Position papers will be selected based on originality, likelihood of spawning insightful discussion at the workshop, and technical merit. Accepted papers will be posted online prior to the workshop and will be published in the ACM Digital Library, thereby widely disseminating the ideas discussed at the workshop.