This fourth volume completes our publication of eponym dies on Rhodian amphora stamps. The volume contains 670 matrices belonging to 34 eponyms. The total in all four volumes of the series represents 5772 matrices for 259 eponyms. We have been informed of previously unpublished matrices and we would like to thank our contributors. These new examples will be included in a volume of addenda et corrigenda, which will be published after the four forthcoming volumes of the lexicon of fabricant dies on Rhodian amphora stamps, the first of which is planned for 2018.