The Mayor of Avellino is an elected politician who, along with the Avellino's City Council, is accountable for the strategic government of Avellino in Campania, Italy. The current Mayor is Gianluca Festa, a centre-left independent, who took office on 28 June 2019.^[1][2][3]

According to the Italian Constitution, the Mayor of Avellino is member of the City Council.

The Mayor is elected by the population of Avellino, who also elects the members of the City Council, controlling the Mayor's policy guidelines and is able to enforce his resignation by a motion of no confidence. The Mayor is entitled to appoint and release the members of his government.

Since 1995 the Mayor is elected directly by Avellino's electorate: in all mayoral elections in Italy in cities with a population higher than 15,000. The voters express a direct choice for the mayor or an indirect choice voting for the party of the candidate's coalition. If no candidate receives at least 50% of votes, the top two candidates go to a second round after two weeks. The election of the City Council is based on a direct choice for the candidate with a preference vote: the candidate with the majority of the preferences is elected. The number of the seats for each party is determined proportionally.