SEN 21, formerly Senator 21 (Czech: Senátor 21), is a Czech political movement established in 2017 by Senator Václav Láska after leaving the Green Party.

[5][6] The party's candidate Tomáš Goláň won the 2018 Zlín by-election.

[7] The party joined the European Democratic Party in February 2019.

[8] In October 2023 Senator 21 and Volt Czechia announced that they would be standing in the 2024 European elections with a joint list.

This article about a Czech political party is a stub.