The current mayor is Antonfrancesco Vivarelli Colonna, a centre-right independent, who took office on 23 June 2016.

[1][2] According to the Italian Constitution, the mayor of Grosseto is member of the city council.

The mayor is elected by the population of Grosseto, 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.

Since 1993, under provisions of a new local administration law, the Mayor of Grosseto is chosen by direct election.

The office of the deputy mayor of Grosseto was officially created in 1993 with the adoption of the new local administration law.