Arch of Trajan may refer to: Arch of Trajan (Ancona), Italy Arch of Trajan (Benevento), Italy Arch of Trajan (Canosa), Italy Arch of Trajan (Mactaris), Maktar, Tunisia Arch of Trajan (Mérida), Spain Arch of Trajan (Rome), Italy Arch of Trajan (Timgad), Algeria