Municipio X (or Municipality 10) is one of the 15 administrative subdivisions of the city of Rome in Italy.

The Council of the municipio is elected every five years, with a system under which voters express a direct choice for the President or an indirect choice voting for the party of the candidate's coalition.

This gives a result whereby the winning candidate may be able to claim majority support.

Last election occurred on 3 and 17 October 2021: The table below shows the current composition of the council: Here is a list of presidents of the municipio since the office was created in 2013: The territory of the municipio is bounded by the Tyrrhenian Sea on the east, by the mouth of Tiber river to the north-west, by Fiumicino to the north and Pomezia to the south.

A substantial part of the territory is occupied by green areas of the Castelfusano Pinewood Urban Park and the Castelporziano Presidential Estate, as part of Litorale Romano State Nature Reserve.