2011 New South Wales state election

The **2011 New South Wales state election** was held on 26 March 2011 to elect the 55th Parliament of New South Wales, including all 93 seats in the Legislative Assembly and 21 of the 42 seats in the Legislative Council. It was conducted by the New South Wales Electoral Commission (NSWEC).

The incumbent Labor government, led by Premier Kristina Keneally, tried to win a fifth consecutive term in government, but were defeated by the Liberal/National Coalition, led by Barry O'Farrell, in a landslide.

Labor had a two-party swing against them of 16.48%, the largest swing against a sitting government in Australia since World War II. The Coalition won the largest majority government in New South Wales history, winning 69 seats in the Legislative Assembly (or 74.2% of the chamber). It was one of the worst defeats of a sitting Australian government since Federation in 1901. Labor won its lowest ever seat total, winning only 20 seats.

In the Legislative Assembly, the Coalition won 69 seats, Labor won 20, the Greens won one and independents won three. In the Legislative Council, the Coalition won 11 seats (with a total of 19), Labor won five (with a total of 14), the Greens won three (with a total of five), the Shooters, Fishers and Farmers Party won one (with at total of two) and the Christian Democrats won one (with a total of two).

## Infobox (election)

- **election name**: 2011 New South Wales state election
- **country**: New South Wales
- **type**: parliamentary
- **ongoing**: no
- **previous election**: 2007 New South Wales state election
- **previous year**: 2007
- **next election**: 2015 New South Wales state election
- **next year**: 2015
- **seats for election**: All 93 seats in the New South Wales Legislative Assembly
and Results of the 2011 New South Wales state election (Legislative Council), 21 (of the 42) seats in the New South Wales Legislative Council
<small>47 Assembly seats were needed for a majority</small>
- **election date**: 26 March 2011
- **opinion polls**: #Polling
- **image1**:
- **leader1**: Barry O'Farrell
- **leader since1**: 4 April 2007
- **party1**: Liberal/National coalition
- **leaders seat1**: Electoral district of Ku-ring-gai, Ku-ring-gai
- **popular vote1**: **2,124,321**
- **percentage1**: **51.15%**
- **swing1**: 14.16
- **last election1**: 35 seats
- **seats before1**: 37
- **seats needed1**: 10
- **seats1**: **69**
- **seat change1**: 32
- **image2**:
- **leader2**: Kristina Keneally
- **leader since2**: 4 December 2009
- **party2**: Australian Labor Party (New South Wales Branch)
- **leaders seat2**: Electoral district of Heffron, Heffron
- **popular vote2**: 1,061,352
- **percentage2**: 25.55%
- **swing2**: 13.43
- **last election2**: 52 seats
- **seats before2**: 50
- **seats2**: 20
- **seat change2**: 30
- **image3**:
- **leader3**: John Kaye (politician), John Kaye
- **leader since3**: 4 March 2011
_(de facto)_
- **party3**: Australian Greens
- **leaders seat3**: New South Wales Legislative Council, Legislative Council
- **popular vote3**: 427,144
- **percentage3**: 10.29%
- **swing3**: 1.33
- **last election3**: 0 seats
- **seats before3**: 0
- **seats needed3**: 46
- **seats3**: 1
- **seat change3**: 1
- **1blank**: Two-party-preferred vote, TPP
- **1data1**: **64.22%**
- **1data2**: 35.78%
- **2blank**: Two-party-preferred vote, TPP swing
- **2data1**: 16.48
- **2data2**: 16.48
- **map image**: 2011 New South Wales election - Vote Strength.svg
- **map size**: 450px
- **map caption**: The top map shows the first party preference by electorate. The bottom map shows the final two-party preferred vote result by electorate.
- **title**: Premier of New South Wales, Premier
- **before election**: Kristina Keneally
- **before party**: Australian Labor Party (New South Wales Branch)
- **posttitle**: Elected Premier of New South Wales, Premier
- **after election**: Barry O'Farrell
- **after party**: Liberal/National coalition