The Lazio regional election of 1970 took place on 7 June 1970.
Christian Democracy resulted the largest party, followed by the Italian Communist Party. After the election Christian Democrat Girolamo Mechelli formed a centre-left government which included the Italian Socialist Party, the Italian Democratic Socialist Party and the Italian Republican Party. In 1972 Mechelli was replaced by fellow Christian Democrat Luigi Cipriani, to whom Rinaldo Santini succeeded in 1973.
Source: Ministry of the Interior