# 41st Parliament of Ontario

The 41st Legislative Assembly of Ontario was a legislature of the government of the province of Ontario, Canada. The membership was set by the 2014 Ontario general election. The 41st parliament of Ontario was dissolved on May 8, 2018.
It was controlled by a Liberal Party majority, with Liberal leader Kathleen Wynne serving as Premier of Ontario.
The Official Opposition was the Progressive Conservative Party led by Vic Fedeli, and the third party was the New Democratic Party, led by Andrea Horwath. At dissolution the Trillium Party had one MPP, Jack MacLaren, but lacked official party status so MacLaren was officially considered an independent by the legislature.

## Timeline of the 41st Parliament of Ontario

The following notable events occurred during the 2014-2018 period:
* July 2, 2014 : The 41st Parliament of Ontario begin its first session. Jim Wilson becomes Leader of the Opposition after being chosen interim leader of the Progressive Conservatives. Dave Levac, member from Brant was re-elected as the speaker of the Legislative Assembly of Ontario.
* July 3, 2014 : Lieutenant Governor David Onley addresses the speech from the throne for the last time as Lieutenant Governor of Ontario, beginning the first session.
* September 23, 2014 : Elizabeth Dowdeswell sworn in as Lieutenant Governor of Ontario, making the top three of the Order of precedence in Ontario all female for the very first time in the history.
* November 21, 2014 : Joe Cimino, the MPP representing Sudbury resigned his seat.
* February 5, 2015 : The former MP Glenn Thibeault was elected as a Liberal MPP in Sudbury, replacing Joe Cimino.
* August 1, 2015 : PC MPP Garfield Dunlop (Simcoe North) resigns in order to allow PC leader Patrick Brown to run for a seat in the legislature.
* August 28, 2015 : PC MPP Christine Elliott (Whitby-Oshawa) resigns her seat.
* September 3, 2015: In a by-election, PC leader Patrick Brown is elected the MPP for Simcoe North
* February 11, 2016: Lorne Coe elected PC MPP for Whitby-Oshawa in a by-election.
* March 23, 2016: Liberal MPP Bas Balkissoon (Scarborough—Rouge River) resigns his seat.
* June 30, 2016: Liberal MPP Madeleine Meilleur (Ottawa—Vanier) resigns her seat.
* September 1, 2016: Raymond Cho wins the Scarborough—Rouge River by-election for the PC's, taking away the seat from the Liberals.
* September 8, 2016: Lieutenant Governor Elizabeth Dowdeswell accepts the advice of Premier Kathleen Wynne to briefly prorogue the Legislature, ending the first session.
* September 12, 2016: Beginning of the second session with the Speech from the Throne.
* September 16, 2016: PC MPP Tim Hudak (Niagara West—Glanbrook) resigns his seat.
* November 17, 2016: By-elections are held in Ottawa—Vanier (won by Liberal Nathalie Des Rosiers) and Niagara West—Glanbrook (won by PC Sam Oosterhoff). Oosterhoff was 19 years old at the time and became the youngest Ontario MPP in history.
* January 1, 2017: David Orazietti (Liberal, Sault Ste. Marie) resigns his seat to take a senior position at Sault College.
* May 28, 2017: Carleton—Mississippi Mills MPP Jack MacLaren is removed from the PC party caucus by Patrick Brown after a 2012 video including controversial remarks about Franco-Ontarians becomes public. By the afternoon of May 28, MacLaren announced on Twitter that he had joined the minor right-wing Trillium Party of Ontario.
* June 1, 2017: Progressive Conservative Ross Romano wins the Sault Ste. Marie by-election taking the seat formerly held by Liberal David Orazietti.
* July 31, 2017: Glen Murray (Liberal, Toronto Centre) announces resignation effective September 1, 2017 to join the Pembina Institute as executive director.
* October 20, 2017: Jagmeet Singh (NDP, Bramalea—Gore—Malton) resigns his seat after being elected leader of the federal NDP.
* December 31, 2017: Cheri DiNovo (NDP, Parkdale—High Park) resigns her seat.
* January 25, 2018: Patrick Brown resigns as PC leader after being accused of sexual misconduct by two women.
* January 26, 2018: Nipissing MPP Vic Fedeli is elected interim PC by caucus members.
* February 16, 2018: Former PC leader Patrick Brown (Simcoe North) is ejected from the PC caucus.
* February 26, 2018: Eric Hoskins (St. Paul's) resigns as Minister of Health and his seat in the legislature to accept a federal appointment.
* March 15, 2018: Lieutenant Governor Elizabeth Dowdeswell accepts the advice of Premier Kathleen Wynne to briefly prorogue the Legislature, ending the second session.
* March 19, 2018: Beginning of the third session with the Speech from the Throne.
* April 9: PC Kitchener-Conestoga MPP Michael Harris is removed from his party's caucus over text messages "of a sexual nature" to a former intern. He was removed 3 days after the party barred him from running as a PC candidate and 2 days following his own announcement saying he would not seek re-election due to health issues.
* May 8, 2018: The 41st parliament of Ontario was dissolved by lieutenant Governor Elizabeth Dowdeswell, a provincial election will be held on June 7, 2018

### Summary of seat changes

Changes in seats held (2014–2018) :
| Seat | Before | Before | Before | Before | Change | Change | Change |
| Seat | Date | Member | Party | Reason | Date | Member | Party |
| Sudbury | November 20, 2014 | Joe Cimino | █ New Democratic | Resignation | February 5, 2015 | Glenn Thibeault | █ Liberal |
| Simcoe North | August 1, 2015 | Garfield Dunlop | █ PC | Resignation | September 3, 2015 | Patrick Brown | █ PC |
| Whitby—Oshawa | August 28, 2015 | Christine Elliott | █ PC | Resignation | February 11, 2016 | Lorne Coe | █ PC |
| Scarborough—Rouge River | March 22, 2016 | Bas Balkissoon | █ Liberal | Resignation | September 1, 2016 | Raymond Cho | █ PC |
| Ottawa—Vanier | June 30, 2016 | Madeleine Meilleur | █ Liberal | Resignation | November 17, 2016 | Nathalie Des Rosiers | █ Liberal |
| Niagara West—Glanbrook | September 16, 2016 | Tim Hudak | █ PC | Resignation | November 17, 2016 | Sam Oosterhoff | █ PC |
| Sault Ste. Marie | December 31, 2016 | David Orazietti | █ Liberal | Resignation | June 1, 2017 | Ross Romano | █ PC |
| Carleton—Mississippi Mills | May 28, 2017 | Jack MacLaren | █ PC | Expulsion | | | █ Trillium |
| Toronto Centre | September 1, 2017 | Glen Murray | █ Liberal | Resignation | | | █ Vacant |
| Bramalea—Gore—Malton | October 20, 2017 | Jagmeet Singh | █ New Democratic | Resignation | | | █ Vacant |
| Parkdale—High Park | December 31, 2017 | Cheri DiNovo | █ New Democratic | Resignation | | | █ Vacant |
| Simcoe North | February 16, 2018 | Patrick Brown | █ PC | Expulsion | | | █ Independent |
| St. Paul's | February 26, 2018 | Eric Hoskins | █ Liberal | Resignation | | | █ Vacant |
| Kitchener-Conestoga | April 9, 2018 | Michael Harris | █ PC | Expulsion | | | █ Independent |

## Party standings at dissolution

Members :
| | Liberal | Kathleen Wynne | Kathleen Wynne | Government | 55 |
| | Progressive Conservative | Doug Ford | Vic Fedeli | Official Opposition | 27 |
| | New Democratic | Andrea Horwath | Andrea Horwath | Third Party | 18 |
| | Trillium | Bob Yaciuk | Jack MacLaren (de facto) | Unrecognized | 1 |
| | Independent | | | | 2 |
| | Vacant | | | | 4 |
| Total | Total | Total | Total | Total | 107 |
| Government Majority | Government Majority | Government Majority | Government Majority | Government Majority | 7 |

## Roster

| Name | Party | Riding | First elected / previously elected | Notes |
| Joe Dickson | Liberal | Ajax—Pickering | 2007-10-10 (GE) | |
| Michael Mantha | New Democrat | Algoma—Manitoulin | 2011-10-06 (GE) | |
| Ted McMeekin | Liberal | Ancaster—Dundas—Flamborough—Westdale | 2000-09-07 (By-election) | |
| Ann Hoggarth | Liberal | Barrie | 2014-06-12 (GE) | |
| Arthur Potts | Liberal | Beaches—East York | 2014-06-12 (GE) | |
| Jagmeet Singh | New Democrat | Bramalea—Gore—Malton | 2011-10-06 (GE) | Resigned October 20, 2017. |
| Vacant | | Bramalea—Gore—Malton | | No by-election will be called prior to the general election. |
| Harinder Malhi | Liberal | Brampton—Springdale | 2014-06-12 (GE) | |
| Vic Dhillon | Liberal | Brampton West | 2003-10-02 (GE) | |
| Dave Levac | Liberal | Brant | 1999-06-03 (GE) | |
| Bill Walker | Progressive Conservative | Bruce—Grey—Owen Sound | 2011-10-06 (GE) | |
| Eleanor McMahon | Liberal | Burlington | 2014-06-12 (GE) | |
| Kathryn McGarry | Liberal | Cambridge | 2014-06-12 (GE) | |
| Jack MacLaren | Progressive Conservative | Carleton—Mississippi Mills | 2011-10-06 (GE) | Progressive Conservative until May 28, 2017. |
| Jack MacLaren | Trillium | Carleton—Mississippi Mills | 2011-10-06 (GE) | Progressive Conservative until May 28, 2017. |
| Rick Nicholls | Progressive Conservative | Chatham-Kent—Essex | 2011-10-06 (GE) | |
| Cristina Martins | Liberal | Davenport | 2014-06-12 (GE) | |
| Michael Coteau | Liberal | Don Valley East | 2011-10-06 (GE) | |
| Kathleen Wynne | Liberal | Don Valley West | 2003-10-02 (GE) | |
| Sylvia Jones | Progressive Conservative | Dufferin—Caledon | 2007-10-10 (GE) | |
| Granville Anderson | Liberal | Durham | 2014-06-12 (GE) | |
| Mike Colle | Liberal | Eglinton—Lawrence | 1995-06-08 (GE) | |
| Jeff Yurek | Progressive Conservative | Elgin—Middlesex—London | 2011-10-06 (GE) | |
| Taras Natyshak | New Democrat | Essex | 2011-10-06 (GE) | |
| Yvan Baker | Liberal | Etobicoke Centre | 2014-06-12 (GE) | |
| Peter Milczyn | Liberal | Etobicoke—Lakeshore | 2014-06-12 (GE) | |
| Shafiq Qaadri | Liberal | Etobicoke North | 2003-10-02 (GE) | |
| Grant Crack | Liberal | Glengarry—Prescott—Russell | 2011-10-06 (GE) | |
| Liz Sandals | Liberal | Guelph | 2003-10-02 (GE) | |
| Toby Barrett | Progressive Conservative | Haldimand—Norfolk | 1995-06-08 (GE) | |
| Laurie Scott | Progressive Conservative | Haliburton—Kawartha Lakes—Brock | 2003-10-02 (GE) 2011-10-06 (GE) | Resigned seat on January 8, 2009 to allow PC leader John Tory to enter legislature. Regained seat in 2011 general election. |
| Indira Naidoo-Harris | Liberal | Halton | 2014-06-12 (GE) | |
| Andrea Horwath | New Democrat | Hamilton Centre | 2004-05-13 (by-election) | |
| Paul Miller | New Democrat | Hamilton East—Stoney Creek | 2007-10-10 (GE) | |
| Monique Taylor | New Democrat | Hamilton Mountain | 2011-10-06 (GE) | |
| Lisa Thompson | Progressive Conservative | Huron—Bruce | 2011-10-06 (GE) | |
| Sarah Campbell | New Democrat | Kenora—Rainy River | 2011-10-06 (GE) | |
| Sophie Kiwala | Liberal | Kingston and the Islands | 2014-06-12 (GE) | |
| Daiene Vernile | Liberal | Kitchener Centre | 2014-06-12 (GE) | |
| Michael Harris | Progressive Conservative | Kitchener—Conestoga | 2011-10-06 (GE) | Was Progressive Conservative until April 9, 2018. |
| Michael Harris | Independent | Kitchener—Conestoga | 2011-10-06 (GE) | Was Progressive Conservative until April 9, 2018. |
| Catherine Fife | New Democrat | Kitchener—Waterloo | 2012-09-06 (by-election) | |
| Monte McNaughton | Progressive Conservative | Lambton—Kent—Middlesex | 2011-10-06 (GE) | |
| Randy Hillier | Progressive Conservative | Lanark—Frontenac—Lennox and Addington | 2007-10-10 (GE) | |
| Steve Clark | Progressive Conservative | Leeds—Grenville | 2010-03-04 (by-election) | |
| Teresa Armstrong | New Democrat | London—Fanshawe | 2011-10-06 (GE) | |
| Deb Matthews | Liberal | London North Centre | 2003-10-02 (GE) | |
| Peggy Sattler | New Democrat | London West | 2013-08-01 (byelection) | |
| Michael Chan | Liberal | Markham—Unionville | 2007-02-08 (byelection) | |
| Amrit Mangat | Liberal | Mississauga—Brampton South | 2007-10-10 (GE) | |
| Dipika Damerla | Liberal | Mississauga East—Cooksville | 2011-10-06 (GE) | |
| Harinder Takhar | Liberal | Mississauga—Erindale | 2003-10-02 (GE) | |
| Charles Sousa | Liberal | Mississauga South | 2007-10-10 (GE) | |
| Bob Delaney | Liberal | Mississauga—Streetsville | 2003-10-02 (GE) | |
| Lisa MacLeod | Progressive Conservative | Nepean—Carleton | 2006-03-30 (by-election) | |
| Chris Ballard | Liberal | Newmarket—Aurora | 2014-06-12 (GE) | |
| Wayne Gates | New Democrat | Niagara Falls | 2014-02-13 (by-election) | Has a nice mustache. |
| Tim Hudak | Progressive Conservative | Niagara West—Glanbrook | 1995-06-08 (GE) | Resigned September 16, 2016 |
| Sam Oosterhoff | Progressive Conservative | Niagara West—Glanbrook | 2016-11-17 (by-election) | By-election on November 17, 2016 |
| France Gélinas | New Democrat | Nickel Belt | 2007-10-10 (GE) | |
| Vic Fedeli | Progressive Conservative | Nipissing | 2011-10-06 (GE) | |
| Lou Rinaldi | Liberal | Northumberland—Quinte West | 2003-10-02 (GE) 2014-06-12 (GE) | Defeated in 2011, regained seat in 2014. |
| Helena Jaczek | Liberal | Oak Ridges—Markham | 2007-10-10 (GE) | |
| Kevin Flynn | Liberal | Oakville | 2003-10-02 (GE) | |
| Jennifer French | New Democrat | Oshawa | 2014-06-12 (GE) | |
| Yasir Naqvi | Liberal | Ottawa Centre | 2007-10-10 (GE) | |
| Marie-France Lalonde | Liberal | Ottawa—Orléans | 2014-06-12 (GE) | |
| John Fraser | Liberal | Ottawa South | 2013-08-01 (byelection) | |
| Madeleine Meilleur | Liberal | Ottawa—Vanier | 2003-10-02 (GE) | Resigned June 9, 2016 |
| Nathalie Des Rosiers | Liberal | Ottawa—Vanier | 2016-11-17 (by-election) | By-election on November 17, 2016 |
| Bob Chiarelli | Liberal | Ottawa West—Nepean | 1987-09-10 (GE) 2010-03-04 (by-election) | Resigned seat in 1997 to contest (and subsequently elected) Regional Chair of Ottawa-Carleton. Re-entered legislature on 2010-03-04 through a by-election. |
| Ernie Hardeman | Progressive Conservative | Oxford | 1995-06-08 (GE) | |
| Cheri DiNovo | New Democrat | Parkdale—High Park | 2006-09-14 (by-election) | Resigned December 31, 2017 |
| Vacant | | Parkdale—High Park | | No by-election will be called prior to the general election. |
| Norm Miller | Progressive Conservative | Parry Sound—Muskoka | 2001-03-22 (by-election) | |
| Randy Pettapiece | Progressive Conservative | Perth—Wellington | 2011-10-06 (GE) | |
| Jeff Leal | Liberal | Peterborough | 2003-10-02 (GE) | |
| Tracy MacCharles | Liberal | Pickering—Scarborough East | 2011-10-06 (GE) | |
| Todd Smith | Progressive Conservative | Prince Edward—Hastings | 2011-10-06 (GE) | |
| John Yakabuski | Progressive Conservative | Renfrew—Nipissing—Pembroke | 2003-10-02 (GE) | |
| Reza Moridi | Liberal | Richmond Hill | 2007-10-10 (GE) | |
| Jim Bradley | Liberal | St. Catharines | 1977-06-09 (GE) | Currently the longest serving member in legislature |
| Eric Hoskins | Liberal | St. Paul's | 2009-09-17 (by-election) | Resigned February 26, 2018. |
| Vacant | | St. Paul's | | No by-election will be called prior to the general election. |
| Bob Bailey | Progressive Conservative | Sarnia—Lambton | 2007-10-10 (GE) | |
| David Orazietti | Liberal | Sault Ste. Marie | 2003-10-02 (GE) | Resigned January 1, 2017 |
| Ross Romano | Progressive Conservative | Sault Ste. Marie | 2017-06-01 (by-election) | By-election on June 1, 2017 |
| Soo Wong | Liberal | Scarborough—Agincourt | 2011-10-06 (GE) | |
| Brad Duguid | Liberal | Scarborough Centre | 2003-10-02 (GE) | |
| Mitzie Hunter | Liberal | Scarborough—Guildwood | 2013-08-01 (byelection) | |
| Bas Balkissoon | Liberal | Scarborough—Rouge River | 2005-11-24 (by-election) | Resigned March 22, 2016 |
| Raymond Cho | Progressive Conservative | Scarborough—Rouge River | 2016-09-01 (by-election) | By-election on September 1, 2016 |
| Lorenzo Berardinetti | Liberal | Scarborough Southwest | 2003-10-02 (GE) | |
| Jim Wilson | Progressive Conservative | Simcoe—Grey | 1990-09-06 (GE) | Currently the longest serving PC member, along with Ted Arnott |
| Garfield Dunlop | Progressive Conservative | Simcoe North | 1999-06-03 (GE) | Resigned August 1, 2015 to allow PC leader Patrick Brown to enter legislature |
| Patrick Brown | Progressive Conservative | Simcoe North | 2015-09-03 (by-election) | By-election on September 3, 2015. PC leader until January 25, 2018; PC MPP until February 16, 2018 |
| Patrick Brown | Independent | Simcoe North | 2015-09-03 (by-election) | By-election on September 3, 2015. PC leader until January 25, 2018; PC MPP until February 16, 2018 |
| Jim McDonell | Progressive Conservative | Stormont—Dundas—South Glengarry | 2011-10-06 (GE) | |
| Joe Cimino | New Democrat | Sudbury | 2014-06-12 (GE) | Resigned November 20, 2014 |
| Glenn Thibeault | Liberal | Sudbury | 2015-02-05 (by-election) | By-election on February 5, 2015 |
| Gila Martow | Progressive Conservative | Thornhill | 2014-02-13 (by-election) | |
| Bill Mauro | Liberal | Thunder Bay—Atikokan | 2003-10-02 (GE) | |
| Michael Gravelle | Liberal | Thunder Bay—Superior North | 1995-06-08 (GE) | |
| John Vanthof | New Democrat | Timiskaming—Cochrane | 2011-10-06 (GE) | |
| Gilles Bisson | New Democrat | Timmins—James Bay | 1990-09-06 (GE) | Currently the longest serving NDP member |
| Glen Murray | Liberal | Toronto Centre | 2010-02-04 (by-election) | Resigned September 1, 2017. |
| Vacant | | Toronto Centre | | There will be no by-election to fill the seat prior to the general election. |
| Peter Tabuns | New Democrat | Toronto—Danforth | 2006-03-30 (by-election) | |
| Han Dong | Liberal | Trinity—Spadina | 2014-06-12 (GE) | |
| Steven Del Duca | Liberal | Vaughan | 2012-09-06 (by-election) | |
| Cindy Forster | New Democrat | Welland | 2011-10-06 (GE) | |
| Ted Arnott | Progressive Conservative | Wellington—Halton Hills | 1990-09-06 (GE) | Currently the longest serving PC member, along with Jim Wilson |
| Christine Elliott | Progressive Conservative | Whitby—Oshawa | 2007-10-10 (GE) | Resigned August 28, 2015 |
| Lorne Coe | Progressive Conservative | Whitby—Oshawa | 2016-02-11 (by-election) | By-election on February 11, 2016 |
| David Zimmer | Liberal | Willowdale | 2003-10-02 (GE) | |
| Percy Hatfield | New Democrat | Windsor—Tecumseh | 2013-08-01 (by-election) | |
| Lisa Gretzky | New Democrat | Windsor West | 2014-06-12 (GE) | |
| Monte Kwinter | Liberal | York Centre | 1985-05-02 (GE) | On January 26, 2013, became the oldest person to ever serve in the Ontario legislature at the age of 81 years 310 days. |
| Julia Munro | Progressive Conservative | York—Simcoe | 1999-06-03 (GE) | Currently the longest serving female member in legislature |
| Laura Albanese | Liberal | York South—Weston | 2007-10-10 (GE) | |
| Mario Sergio | Liberal | York West | 1995-06-08 (GE) | |

## Officeholders

Officeholders in the Legislature at dissolution on May 8, 2018.

### Speaker

* Speaker of the Legislative Assembly of Ontario: Hon. Dave Levac (Liberal)

### Other Chair occupants

* Deputy Speaker and Chair of the Committee of the Whole: Soo Wong (Liberal)

### Leaders

* Premier of Ontario: Hon. Kathleen Wynne (Liberal)
* Leader of the Opposition: Vic Fedeli (Progressive Conservative)
* Leader of the Ontario New Democratic Party: Andrea Horwath

### Floor leaders

* Government House Leader: Hon. Yasir Naqvi
* Opposition House Leader: Jim Wilson
* NDP House Leader: Gilles Bisson

### Whips

* Chief Government Whip: Jim Bradley
* Official Opposition Whip: John Yakabuski
* NDP Whip: John Vanthof

### Front benches

* Executive Council of Ontario
* Official Opposition Shadow Cabinet of the 41st Legislative Assembly of Ontario
* Ontario New Democratic Party Shadow Cabinet of the 41st Legislative Assembly of Ontario

## Membership changes

| Number of members per party by date | Number of members per party by date | 2014 | 2014 | 2015 | 2015 | 2015 | 2015 | 2016 | 2016 | 2016 | 2016 | 2016 | 2016 | 2017 | 2017 | 2017 | 2017 | 2017 | 2017 | 2018 | 2018 | 2018 |
| Number of members per party by date | Number of members per party by date | Jun 12 | Nov 20 | Feb 5 | Aug 1 | Aug 28 | Sep 3 | Feb 11 | Mar 22 | Jun 30 | Sep 1 | Sep 16 | Nov 17 | Jan 1 | May 28 | Jun 1 | Sep 1 | Oct 20 | Dec 31 | Feb 16 | Feb 26 | Apr 9 |
| | Liberal | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 58 | 57 | 57 | 57 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 55 |
| | Progressive Conservative | 28 | 28 | 28 | 27 | 26 | 27 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 |
| | New Democratic | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 18 | 18 | 18 | 18 |
| | Trillium | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| | Independent | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 |
| Total members | Total members | 107 | 106 | 107 | 106 | 105 | 106 | 107 | 106 | 105 | 106 | 105 | 107 | 106 | 106 | 107 | 106 | 105 | 104 | 104 | 103 | 103 |
| | Vacant | 0 | 1 | 0 | 1 | 2 | 1 | 0 | 1 | 2 | 1 | 2 | 0 | 1 | 1 | 0 | 1 | 2 | 3 | 3 | 4 | 4 |
| Government majority | Government majority | 9 | 10 | 11 | 12 | 13 | 12 | 11 | 10 | 9 | 8 | 9 | 9 | 8 | 8 | 7 | 6 | 7 | 8 | 8 | 7 | 7 |
41st Legislative Assembly of Ontario - Movement in seats held from 2014 to 2018 :
| Party | Party | 2014 | Gain/(loss) due to | Gain/(loss) due to | Gain/(loss) due to | Gain/(loss) due to | 2018 |
| Party | Party | 2014 | Resignation | By-election hold | By-election gain | Expulsion | 2018 |
| | Liberal | 58 | -5 | 1 | 1 | | 55 |
| | Progressive Conservative | 28 | -3 | 3 | 2 | -3 | 27 |
| | New Democratic | 21 | -3 | | | | 18 |
| | Trillium | – | | | | 1 | 1 |
| | Independent | – | | | | 2 | 2 |
| | Vacant | – | 4 | | | | 4 |
| Total | Total | 107 | (7) | 4 | 3 | – | 107 |