This volume contains the papers preesented at the ThirdInternational Workshop on Conditional Term RewritingSystems, held in Pont- -Mousson, France, July 8-10, 1992. Topics covered include conditional rewriting and itsapplications to programming languages, specificationlanguages, automated deduction, constrained rewriting, typedrewriting, higher-order rewriting, and graph rewriting. The volume contains 40 papers, including four invited talks:Algebraic semantics of rewriting terms and types, by K. Meinke; Generic induction proofs, by P. Padawitz;Conditional term rewriting and first-order theorem proving,by D. Plaisted; and Decidability of finiteness properties(abstract), by L. Pacholski. The first CTRS workshop was held at the University of Parisin 1987 and the second at Concordia University, Montreal, in1990. Their proceddings are published as Lecture Notes inComputer Science Volumes 308 and 516 respectively.