Mario Baccini (born 14 December 1957 in Rome) is an Italian politician, former member of the Union of Christian and Centre Democrats and promoter of the White Rose, incumbent mayor of Fiumicino since May 2023.

He started his political activity as town councilor in Rome, for the Christian Democracy party (DC).

In 1994, when DC disbanded, he joined the Christian Democratic Centre, which entered the Pole of Freedoms.

In the same year, he became president of the Christian Democratic Centre (CCD) parliamentary group at the Chamber of Deputies.

At Italian general election, the White Rose was in alliance with UDC and other Christian democrats movements into the Union of the Centre, and Baccini was elected to the Chamber of Deputies: he didn't join White Rose's parliamentary group, but rather he adhered to the mixed group.