The Governor of Oʻahu (Hawaiian: Kiaʻaina o Oʻahu) was the royal governor or viceroy of the island of Oʻahu in the Kingdom of Hawaii. The Governor of Oʻahu resided at Honolulu and was usually a Hawaiian chief or prince and could even be a woman. The governor had authority over the island of Oahu and Honolulu, the kingdom's capital, and it was up to the governor to appoint lieutenant governors to assist them. The governor had replaced the old alii aimokus of the islands, but sovereignty remained with the king. The island governors were under the jurisdiction of the Ministers of the Interiors. Either the governor or the monarch had the power to call in foreign assistance in time of troubles. This occurred a few times, including the uprising of the Emmaites in 1874 when John Owen Dominis call