22nd Parliament of Ontario
The 22nd Legislative Assembly of Ontario was in session from June 4, 1945, until April 27, 1948, just prior to the 1948 general election. The majority party was the Ontario Progressive Conservative Party led by George Drew.
William James Stewart served as speaker for the assembly until March 21, 1947. James de Congalton Hepburn succeeded Stewart as speaker.
| Riding | Member | Party |
| Addington | John Abbott Pringle | Progressive Conservative |
| Algoma—Manitoulin | John Arthur Fullerton | Progressive Conservative |
| Beaches | Thomas Alexander Murphy | Conservative |
| Bellwoods | Albert Alexander MacLeod | Labour-Progressive |
| Bracondale | Harry Hyland Hyndman | Conservative |
| Brant | Harry Corwin Nixon | Liberal |
| Brantford | Stanley Dye | Conservative |
| Bruce | John Philemon Johnstone | Conservative |
| Carleton | Adam Holland Acres | Progressive Conservative |
| Cochrane North | Joseph-Anaclet Habel | Liberal |
| Cochrane South | Bill Grummett | Co-operative Commonwealth |
| Dovercourt | William Duckworth | Progressive Conservative |
| Dufferin—Simcoe | Alfred Wallace Downer | Progressive Conservative |
| Durham | Reginald Percival Vivian | Progressive Conservative |
| Eglinton | Leslie Egerton Blackwell | Progressive Conservative |
| Elgin | Fletcher Stewart Thomas | Progressive Conservative |
| Essex North | Alexander A. Parent | Liberal-Labour |
| Essex South | William Murdoch | Progressive Conservative |
| Fort William | Garfield Anderson | Co-operative Commonwealth |
| Glengarry | Edmund MacGillivray | Liberal |
| Grenville—Dundas | George Holmes Challies | Progressive Conservative |
| Grey North | Mackinnon Phillips | Progressive Conservative |
| Grey South | Farquhar Robert Oliver | Liberal |
| Haldimand—Norfolk | Charles Hammond Martin | Progressive Conservative |
| Halton | Stanley Leroy Hall | Progressive Conservative |
| Hamilton Centre | Vernon Charles Knowles | Progressive Conservative |
| Hamilton East | Robert Ellsworth Elliott | Progressive Conservative |
| Hamilton—Wentworth | Russell Temple Kelley | Progressive Conservative |
| Hastings East | Roscoe Robson | Progressive Conservative |
| Hastings West | James Frederick Wilson | Progressive Conservative |
| High Park | George Alexander Drew | Progressive Conservative |
| Huron | Robert Hobbs Taylor | Progressive Conservative |
| Thomas Pryde | Progressive Conservative | |
| Huron—Bruce | John William Hanna | Progressive Conservative |
| Kenora | William Manson Docker | Co-operative Commonwealth |
| Kent East | Wesley Gardiner Thompson | Progressive Conservative |
| Kent West | George William Parry | Progressive Conservative |
| Kingston | Harry Allan Stewart | Progressive Conservative |
| Lambton East | Charles Eusibius Janes | Progressive Conservative |
| Lambton West | Bryan Lewis Cathcart | Progressive Conservative |
| Lanark | George Henry Doucett | Progressive Conservative |
| Leeds | Walter Bain Reynolds | Progressive Conservative |
| Lincoln | Charles Daley | Progressive Conservative |
| London | William Gourlay Webster | Progressive Conservative |
| Middlesex North | Thomas L. Patrick | Progressive Conservative |
| Middlesex South | Harry Marshall Allen | Progressive Conservative |
| Muskoka—Ontario | George Arthur Welsh | Progressive Conservative |
| Niagara Falls | Carl David Hanniwell | Progressive Conservative |
| Nipissing | Victor Martin | Liberal |
| Northumberland | William Arthur Goodfellow | Progressive Conservative |
| Ontario | Thomas Kelso Creighton | Progressive Conservative |
| Ottawa East | Aurele Chartrand | Liberal |
| Ottawa South | George Harrison Dunbar | Progressive Conservative |
| Oxford | Thomas Roy Dent | Progressive Conservative |
| Parkdale | William James Stewart | Progressive Conservative |
| Parry Sound | Milton Taylor Armstrong | Liberal |
| Peel | Thomas Laird Kennedy | Progressive Conservative |
| Perth | James Frederick Edwards | Progressive Conservative |
| Peterborough | Harold Robinson Scott | Progressive Conservative |
| Port Arthur | Frederick Oliver Robinson | Co-operative Commonwealth |
| Prescott | Aurélien Bélanger | Liberal |
| Prince Edward—Lennox | James de Congalton Hepburn | Progressive Conservative |
| Rainy River | James Melvin Newman | Liberal-Labour |
| Renfrew North | Stanley Joseph Hunt | Progressive Conservative |
| Renfrew South | James Shannon Dempsey | Progressive Conservative |
| Riverdale | Gordon James Millen | Progressive Conservative |
| Russell | Romeo Bégin | Liberal |
| Sault Ste. Marie | George Isaac Harvey | Co-operative Commonwealth |
| Simcoe Centre | George Graham Johnston | Progressive Conservative |
| Simcoe East | John Duncan McPhee | Progressive Conservative |
| St. Andrew | Joseph Baruch Salsberg | Labour-Progressive |
| St. David | Daniel Roland Michener | Progressive Conservative |
| St. George | Dana Harris Porter | Progressive Conservative |
| St. Patrick | Archibald Kelso Roberts | Progressive Conservative |
| Stormont | William Alexander Murray | Liberal |
| Sudbury | Robert Hugh Carlin | Co-operative Commonwealth |
| Timiskaming | Calvin Howard Taylor | Co-operative Commonwealth |
| Victoria | Leslie Miscampbell Frost | Progressive Conservative |
| Waterloo North | Joseph Ignatino Meinzinger | Liberal-Labour |
| Waterloo South | Gordon Chaplin | Progressive Conservative |
| Welland | Thomas Henry Lewis | Progressive Conservative |
| Wellington North | Ross Atkinson McEwing | Liberal |
| Wellington South | William Ernest Hamilton | Progressive Conservative |
| Wentworth | William Robertson | Co-operative Commonwealth |
| Windsor—Sandwich | William Griesinger | Progressive Conservative |
| Windsor—Walkerville | M.C. Davies | Progressive Conservative |
| Woodbine | Goldwin Corlett Elgie | Progressive Conservative |
| York East | John A. Leslie | Progressive Conservative |
| York North | Addison Alexander MacKenzie | Progressive Conservative |
| York South | Howard Julian Sale | Progressive Conservative |
| York West | John Pearman Allan | Progressive Conservative |