This volume of the Lecture Notes in Computer Science series contains all the papers accepted for presentationat the second IEEE InternationalWorkshopon Self-Managed Networks, Systems and Services (SelfMan 2006), which was held at University College Dublin, Ireland on June 16, 2006. This workshop follows up on a very successful edition that took place last year in Nice, France. The online proceedings of SelfMan 2005 are available at http://madynes.loria.fr/selfman2005/. The objectives of this year's edition were to bring together people from d- ferent communities (networking, distributed systems, softwareengineering, P2P, service engineering, distributed arti?cial intelligence, robotics, etc.) and cro- pollinatetheir experienceindesigningandimplementingself-managednetworks, systems and services. We received 51 papers from 21 countries, of which 12 were selected. The - ceptance ratio was below 24%. In addition, we selected three work-in-progress papers for short presentations. This one-day event was structured so as to - courage discussions and foster collaborations. The breadth of the topics presented herein re?ects the current interest and developments in this rapidly growing?eld. It is also a testimony to the promises of self-management to design, operate and manage today's increasingly complex and heterogeneous networks, systems and services.