This volume contains the proceedings of the 5th International Symposium on Programming Language Implementation and Logic Programming (PLILP '93), held in Tallinn, Estonia, in August 1993. Researchers from the fields of algorithmic programming languages as well as logic, functional, object-oriented and constraint programming constitute the audience of PLILP. The volume contains three invited talks and 24 selected contributed papers grouped into parts on: the integration of different paradigms; constraint programming; static analysis and abstract interpretation; grammars; narrowing; parallelism; and implementation techniques.