Ad hoc networks, which cover a variety of network paradigms for specific purposes, such as mobile ad hoc networks, sensor networks, vehicular networks, underwater networks, underground networks, local area networks, personal area networks, home networks, etc., promise a broad range of applications in civilian, commercial, and military areas. The aim of the annual International Conference on Ad Hoc Networks (AdHocNets) is to provide a forum that brings together researchers from academia as well as practitioners from industry to meet and exchange ideas and recent research work on all aspects of ad hoc networks. AdHocNets’09 is the first edition of this event, which will be held in Niagara Falls, Canada, in September 2009. The conference will consist of technical sessions, panels, and workshops. The technical sessions will present original and fundamental research advances while the panels and workshops will focus on development and application issues in this hot field.