The Overseas Constituencies consists of four electoral zones which elect Deputies and Senators to the Italian Parliament. Italy is one of the few countries to reserve seats for those citizens residing abroad. Since 2020, there are eight such seats in the Chamber of Deputies and four in the Senate of the Republic.

The Italian Parliament is the national parliament of the Italian Republic. It is the representative body of Italian citizens and is the successor to the Parliament of the Kingdom of Sardinia (1848–1861), the Parliament of the Kingdom of Italy (1861–1943), the transitional National Council (1945–1946) and the Constituent Assembly (1946–1948). It is a bicameral legislature with 600 elected members and a small number of unelected members. The Italian Parliament is composed of the Chamber of Deputies, as well as the Senate of the Republic.