Definition and meaning of vice mayor: A vice mayor, also sometimes known as a deputy mayor or assistant mayor, is an elected official in local government. Not all towns and cities have vice mayors. Vice mayors can play different roles in different communities, including acting as the town or city's chief operating officer or presiding over the city council. If the mayor dies, resigns, or is otherwise no longer able to serve in office, the vice mayor can serve as the acting mayor in their absence. The position of vice mayor is one of many local government offices that can benefit from independent candidates and a commitment to non-partisan governance.