The centre-left coalition candidate, heart surgeon Ignazio Marino (PD), was chosen by a multi-party primary election on 7 April 2013.

[3] Among the most popular candidates there were Ignazio Marino, heart surgeon and senator, who was candidate in the 2009 Democratic Party leadership election; David Sassoli, journalist and MEP since 2009; and Paolo Gentiloni, former Minister of Communication in the Prodi II Cabinet.

The voting system is used for all mayoral elections in Italy, in the city with a population higher than 15,000 inhabitants.

Reduced from 19 to 15 in March 2013, municipi are governed by a president and a council who are elected by its residents every five years.

Table below shows the results for each municipio with the percentage for each coalition on the first round: Table below shows the results for each municipio with the percentage for each coalition on the second round: Source: Municipality of Rome - Electoral Service