It is a pleasure to present the proceedings of the 22nd European Conference on Object-Oriented Programming (ECOOP 2008) held in Paphos, Cyprus. The conference continues to serve a broad object-oriented community with a tech- cal program spanning theory and practice and a healthy mix of industrial and academic participants. This year a strong workshop and tutorial program c- plemented the main technical track. We had 13 workshops and 8 tutorials, as well as the co-located Dynamic Language Symposium (DLS). Finally, the program was rounded out with a keynote by Rachid Guerraoui and a banquet speech by James Noble. As in previous years, two Dahl-Nygaard awards were selected by AITO, and for the first time, the ECOOP Program Committee gave a best paper award. The proceedings include 27 papers selected from 138 submissions. The papers werereviewed in a single-blind process with three to five reviews per paper. P- liminary versions of the reviews were made available to the authors a week before the PC meeting to allow for short (500 words or less) author responses. The - sponses were discussed at the PC meeting and were instrumental in reaching decisions. The PC discussions followed Oscar Nierstrasz’Champion pattern. PC papers had five reviews and were held at a higher standard.