Senate district 12 – Strakonice is an electoral district of the Senate of the Czech Republic, containing whole of the Strakonice District as well as parts of Písek and Prachatice Districts.

[1] Since 2020, Tomáš Fiala, a Civic Democratic Party nominee, is the Senator for the district.

By-election in the district was held after Pavel Rychetský was named as the President of the Constitutional Court of the Czech Republic.