This book constitutes the proceedings of the 14th International Conference on Software Engineering and Formal Methods, SEFM 2016, held as part of STAF 2016, in Vienna, Austria, in July 2016. The 20 full and 5 short papers presented in this volume were carefully reviewed and selected from 88 submissions. They were organized in topical sections named: concurrency and non-interference; program analysis; model checking; verification; interaction and adaptation; and development methods.