Polish parliamentary election, 2011

Polish parliamentary election, 2011

← 2007 9 October 2011 2015 →
All 460 seats to the Sejm 231 seats are needed for a majority in the Sejm All 100 seats to the Senate of Poland
Turnout	48.92%
First party Second party Third party   Leader Donald Tusk Jarosław Kaczyński Janusz Palikot Party PO PiS RP Leader since 1 June 2003 18 January 2003 18 October 2010 Leader's seat 19 – Warsaw I 19 – Warsaw I 19 – Warsaw I Last election 209 seats, 41.5% 166 seats, 32.1% Did not exist Seats before 208 146 0 Seats won 207 157 40 Seat change 1 11 40 Popular vote 5,629,773 4,295,016 1,439,490 Percentage 39.2% 29.9% 10.0% Swing 2.3% 2.2% New party   Fourth party Fifth party Sixth party   Leader Waldemar Pawlak Grzegorz Napieralski Ryszard Galla Party PSL SLD MN Leader since 29 January 2005 31 May 2008 Leader's seat 16 – Płock 41 – Szczecin 21 – Opole Last election 31 seats, 8.9% 53 seats, 13.2% 1 seat, 0,2% Seats before 31 43 Seats won 28 27 1 Seat change 3 16 Popular vote 1,201,628 1,184,303 28 014 Percentage 8.4% 8.2% 0.2% Swing 0.5% 5.0%
Powiats won by ■ – Civic Platform ■ – Law and Justice ■ – Polish People's Party ■ – Democratic Left Alliance
Prime Minister before election Donald Tusk PO Prime Minister-Elect Donald Tusk PO

■ – Civic Platform ■ – Law and Justice
■ – Polish People's Party

Donald Tusk
PO

Donald Tusk
PO

A parliamentary election to both the Senate and the Sejm (lower house) was held in Poland on 9 October 2011. The previous election, in 2007, resulted in a Civic Platform–Polish People's Party government. All seats of both Houses were up for re-election.

Prime Minister Donald Tusk's Civic Platform (PO) won a plurality of seats and Tusk became the first Polish prime minister to be appointed for a second consecutive term since the fall of communism. Both the Civic Platform and its junior partner, the Polish People's Party (PSL), agreed to continue their governing coalition after the election.

The election was for all 460 seats of the Sejm and all 100 seats of the Senate. Candidates for Deputies are nominated either by the electoral committees of the various political parties and or by individual voter committees. The process of election for the Sejm is through party-list proportional representation via the D'hondt method in multi-seat constituencies (41 in total), with a 5% threshold for single parties and 8% threshold for coalitions (requirements waived for national minorities).

The election was the first one to take place under a new Election Code which altered the electoral system in the Senate election from a plurality block voting to the first-past-the-post voting, with one member to be returned in each of the 100 single member constituencies.