This book constitutes the proceedings of the 34th IFIP WG 6.1 International Conference on Formal Techniques for Distributed Objects, Components and Systems, FORTE 2014, held in Berlin, Germany, in June 2014, as part of the 9th International Federated Conference on Distributed Computing Techniques, DisCoTec 2014. The 18 revised full papers presented were carefully reviewed and selected from 50 submissions. The papers present a wide range of topics on specification languages and type systems, monitoring and testing, security analysis and bisimulation, abstraction and reduction.