Honorias (Greek: Ὁνωριάς) was a late Roman province encompassing parts of Bithynia and Paphlagonia in Asia Minor (modern Turkey). Its capital was Claudiopolis (modern Bolu), and its governor was of the rank of praeses.
The province was established under Theodosius I and named after his younger son Honorius. It formed part of the Diocese of Pontus, bordering with Bithynia in the west, Galatia Prima in the south and Paphlagonia in the east. In the administrative reforms of Emperor Justinian I, the province was united with that of Paphlagonia and formed a new province of Paphlagonia under a governor termed praetor Iustinianus. Aside from the capital Claudiopolis, the major cities and episcopal seats of the province listed in the Synecdemus were Heraclea Pontica, Prusias, Tium, Cratea and Hadrianopolis.
Episcopal sees of Honorias that are now listed in the Annuario Pontificio as titular sees include: