A lieutenant governor, lieutenant-governor, or vice governor is a high officer of state, whose precise role and rank vary by jurisdiction. Often a lieutenant governor is the deputy, or lieutenant, to or ranked under a governor — a "second-in-command", rather like deputy governor. In Canadian provinces and in the Dutch Caribbean, the lieutenant governor is the representative of the monarch in that jurisdiction, and thus outranks the head of government but for practical purposes has virtually no power.
In the United States, lieutenant governors are usually second-in-command to a state governor, and the actual power held by the lieutenant governor varies greatly from state to state. The lieutenant governor is often first in line of succession to the governorship, and acts as governor when the governor leaves the state or is unable to serve. Also, the lieutenant governor is often the president of the state senate.
Lieutenant governors (Dutch: gezaghebber) of the former Dutch constituent country of Netherlands Antilles acted as head of the governing council of the island territories, which formed a level of decentral government until the dissolution of the Netherlands Antilles in 2010. Currently the Netherlands has a lieutenant governor overseeing each of the three special municipalities in the Caribbean Netherlands – Saba, Bonaire, and Sint Eustatius – where their function is similar to a mayor in the European Netherlands.