This volume comprises refereed papers and abstracts from the 7th International Conference on the Evolution of Language (EVOLANG7), held in Barcelona in March 2008. As the leading international conference in the field, the biennial EVOLANG meeting is characterized by an invigorating, multidisciplinary approach to the origins and evolution of human language, and brings together researchers from many fields including anthropology, archeology, artificial life, biology, cognitive science, computer science, ethology, genetics, linguistics, neuroscience, paleontology, primatology, psychology and statistical physics.The latest theoretical, experimental and modeling research on language evolution is presented in this collection. It includes contributions from leading scientists such as Derek Bickerton, Rudolf Botha, Camilo Cela Conde, Francesco d'Erico, Susan Goldin-Meadow, Simon Kirby, Gary Marcus, Friedemann Pulvermüller and Juan Uriagereka.