The Tuscan regional election of 1975 took place on 15 June 1975.

Election was held under proportional representation with provincial constituencies where the largest remainder method with a Droop quota was used.

To ensure more proportionality, remained votes and seats were transferred at regional level and calculated at-large.

After the election Lelio Lagorio (Italian Socialist Party), the incumbent President of the Region, formed a new government with the Italian Communist Party.

In 1978 Mario Leone, another Socialist, took over from Lagorio.