This book constitutes the proceedings of the 47th International Conference on Application and Theory of Petri Nets and Concurrency, PETRI NETS 2026, held in Hamburg, Germany, during June 2026.The 14 full papers and 6 short papers presented in this volume were carefully reviewed and selected from 42 submissions. The topics of accepted papers includes Parallel computing models, Abstract machines, Formal languages and automata theory.
