This volume contains the proceedings of the 17th International SPIN Workshop on Model Checking Software (SPIN 2010). The workshop was organized by and held at the University of Twente, The Netherlands, on 27-29 September 2010. The workshop was co-located with the 5th International Conference on Graph Transformation (ICGT 2010) and several of its satellite workshops, and with the joint PDMC and HiBi workshops, on Parallel and Distributed Methods for veri?Cation and on High-performance computational systems Biology. The SPIN workshopis a forum for practitioners and researchersinterested in state-spaceanalysisofsoftware-intensivesystems.Thisisapplicableinparticular to concurrent and asynchronous systems, including protocols. The name of the workshop re?ects the SPIN model checking tool by Gerard J. Holzmann, which won the ACM System Software Award 2001, and is probably the most widely used industrial-strength model checker around. The focus of the workshop is on theoretical advances and extensions, al- rithmic improvements, and empirical evaluation studies of (mainly) state-based modelcheckingtechniques,asimplementedintheSPINmodelcheckerandother tools. The workshop encourages interaction and exchange of ideas with all - lated areas in software engineering. To this end, we co-located SPIN 2010 with the graph transformation, and high-performance analysis communities. This year, we received 33 submissions, divided between 29 regular and 4 tool papers.Eachpaperwasrigorouslyreviewedbyatleastfourreviewers,andjudged onitsqualityandits signi?canceandrelevanceforSPIN.Weaccepted13regular papers, and 2 tool papers for presentation and for publication in this volume.