This book presents the refereed proceedings of the 14th International Symposium on Formal Methods, FM 2006, held in Hamilton, Canada in August 2006.

The 36 revised full papers presented together with 2 invited contributions and extended abstracts of 7 invited industrial presentations were carefully reviewed and selected from 145 submissions. The papers are organized in topical sections on interactive verification, formal modelling of systems, real time, industrial experience, specification and refinement, programming languages, algebra, education, formal modelling of systems, formal aspects of java, model checking, and abstracts of invited talks from the industry day.