The Roman pharaohs, rarely referred to as ancient Egypt's Thirty-fourth Dynasty, were the Roman emperors in their capacity as rulers of Egypt, especially in Egyptology. After Egypt was incorporated into the Roman Republic in 30 BC by Octavian, the people and especially the priesthood of the country continued to recognize the Roman emperors as pharaohs, according them traditional pharaonic titularies and depicting them with traditional pharaonic garb, engaging in traditional pharaonic activities, in artwork and at temples throughout Egypt.
Though the Egyptians themselves considered the Romans to be their pharaohs and the legitimate successors of the ancient pharaohs, the emperors themselves never adopted any pharaonic titles or traditions outside of Egypt, as these would have been hard to justify in the Roman world at large. Most emperors probably gave the status accorded to them by the Egyptians little care and rarely visited the province more than once in their lifetime. Their role as god-kings was only ever officially acknowledged by the Egyptians themselves. This was a sharp contrast to the preceding dynasty of the Hellenistic Ptolemaic Kingdom, who had spent the majority of their lives in Egypt. Pharaohs before Egypt's incorporation into the Achaemenid Empire in the Late Period had also all ruled the country from within Egypt. Egypt was, however, governed differently from other Roman provinces, with emperors hand-picking governors for the region and often treating it more like a personal possession than a province. Though not all emperors were recognized as pharaohs, Egyptian religion demanded the presence of a pharaoh to act as the intermediate between humanity and the gods. The emperors filling this role proved to be the most simple solution, and was similar to how the Persians had been regarded as pharaohs centuries prior (constituting the Twenty-seventh and Thirty-first dynasties).