The Common Powiat (Polish: Wspólny Powiat, WP) is a local Polish party from the Świdnica County. It was founded in January 2014 by the incumbent starosta of Świdnica, Zygmunt Worsa. The activities of the party are limited to the Świdnica County in Lower Silesia, and the party focuses on local matters regarding Świdnica and Silesia. The party consists of local politicians of the county, including former members of the Civic Platform, Law and Justice and Together. The party cooperates with the Civic Platform and the Democratic Left Alliance and formed a local coalition with these parties, and Common Powiat also expressed its national support for these parties.

In the 2014 Polish local elections to the county council of Świdnica, Common Powiat emerged as the second largest party ex aequo with the Civic Platform (both parties won four seats), while the Polish People's Party became the largest party with five seats. This outcome led to a compromise government, where Zygmunt Worsa lost his position as Starosta of Świdnica and became the Vice-Starosta instead. Piotr Fedorowicz of the Civic Platform took his place as the Starosta of the Świdnica County. However, in the 2018 Polish local elections, Common Powiat won six seats, this time emerging as the largest party in the Świdnica County. Worsa remains the Vice-Starosta of Świdnica.

The party was registered on 29 January 2014 by Zygmunt Worsa, the incumbent Starosta of the Świdnica County. Worsa is known for ambitious and expansive development and investment programs in Świdnica, and was accused by conservative politicians of bringing the county to the brink of bankruptcy. The politician denied these accusations and jokingly proposed cutting the councillors' salaries to further fund his projects.

The members of Common Powiat include politicians already known for their activities within the local governments of Świdnica. Among the members of the new party is Alicja Synowska who has been an active member of the Civic Platform and ran for parliament on behalf of the party, as well as Bolesław Marciniszyn who served as the mayor of Świdnica and entered the district council as a Civic Platform candidate. The party also included former Law and Justice councillors such as Elżbieta Gaszyńska, and many local politicians from the Left Together party.

The committee of Common Powiat announced that while it was ready to form a local coalition with "almost anyone", it specifically preferred to enter a coalition with the Civic Platform and Democratic Left Alliance, signalling a left-leaning alignment of the new party. The local politicians of left-wing Democratic Left Alliance extensively cooperated with Worsa during his term as Starosta.

The party fielded candidates for local councils of the Świdnica County in the 2014 Polish local elections, and won four seats in total. This made the party the second largest one in Świdnica together with the Civic Platform, while the Polish People's Party emerged as the largest party in the county with five seats.

Common Powiat formed a local coalition with the Civic Platform and the Democratic Left Alliance, which resulted in a reshuffling of the local cabinet. Zygmunt Worsa lost his position as Starosta and became Vice-Starosta instead, while Piotr Fedorowicz of Civic Platform became the next Starosta of Świdnica.

The party fielded 54 candidates for the 2018 Polish local elections. Zygmunt Worsa declared that he aspires to acquire seven seats in the Świdnica councils, and to maintain his position as Vice-Starosta of Świdnica. He also expressed his intention to continue his coalition with the Civic Platform and Democratic Left Alliance.