Find MPP by name:
| MPP Sort descending | Riding | Party |
|---|---|---|
| Jackson, Cameron | Burlington | Progressive Conservative Party of Ontario |
| Jackson, Donald | Timiskaming | New Democratic Party of Ontario |
| Jackson, George Ernest | London South | Progressive Conservative Party of Ontario |
| Jackson, Rod | Barrie | Progressive Conservative Party of Ontario |
| Jaczek, Helena | Oak Ridges—Markham | Ontario Liberal Party |
| Jama, Sarah | Hamilton Centre | Independent |
| James, Michael | Nipissing East | Ontario Liberal Party |
| Jamieson, David | Grey South | Conservative Party |
| Jamieson, James Edgar | Simcoe Southwest | Conservative Party |
| Jamison, Norman | Norfolk | New Democratic Party of Ontario |
| Janes, Charles Eusibius | Lambton East | Progressive Conservative Party of Ontario |
| Jaques, William | Haldimand | Conservative Party |
| Jarvis, Charles William | Fort William | Conservative Party |
| Jeffrey, Linda | Brampton—Springdale | Ontario Liberal Party |
| Jelly, William | Dufferin | Conservative Party |
| Jessiman, James Hugh | Fort William | Progressive Conservative Party of Ontario |
| Jessop, Elisha | St. Catharines | Conservative Party |
| Johns, Helen | Huron—Bruce | Progressive Conservative Party of Ontario |
| Johnson, Bert | Perth—Middlesex | Progressive Conservative Party of Ontario |
| Johnson, David John | Don Mills | Progressive Conservative Party of Ontario |
| Johnson, John McLellan | Wellington | Progressive Conservative Party of Ontario |
| Johnson, John Wesley | Hastings West | Conservative Party |
| Johnson, Paul R. | Prince Edward—Lennox-South—Hastings | New Democratic Party of Ontario |
| Johnson, Rick | Haliburton—Kawartha Lakes—Brock | Ontario Liberal Party |
| Johnson, Ron | Brantford | Progressive Conservative Party of Ontario |
| Johnston, Alexander | Middlesex West | Conservative Party |
| Johnston, Allister | Parry Sound | Progressive Conservative Party of Ontario |
| Johnston, George Graham | Simcoe Centre | Progressive Conservative Party of Ontario |
| Johnston, John Benjamin | Simcoe East | United Farmers of Ontario |
| Johnston, Richard Frank | Scarborough West | New Democratic Party of Ontario |
| Johnston, Robert Mercer | St. Catharines | Progressive Conservative Party of Ontario |
| Johnston, Thomas Dalton | Peterborough East | Conservative Party |
| Johnston, William Erskine | Carleton | Progressive Conservative Party of Ontario |
| Johnston, William J. | Lanark South | United Farmers of Ontario |
| Johnstone, John Philemon | Bruce | Progressive Conservative Party of Ontario |
| Jolley, Arthur Connaught | Niagara Falls | Progressive Conservative Party of Ontario |
| Jolliffe, Edward Bigelow | York South | Co-operative Commonwealth Federation |
| Jones, Hon. Sylvia | Dufferin—Caledon | Progressive Conservative Party of Ontario |
| Jones, Hon. Trevor | Chatham-Kent—Leamington | Progressive Conservative Party of Ontario |
| Jones, Terry David | Mississauga North | Progressive Conservative Party of Ontario |
| Jordan, John | Lanark—Frontenac—Kingston | Progressive Conservative Party of Ontario |
| Jordan, W. Leo | Lanark—Renfrew | Progressive Conservative Party of Ontario |
| Joynt, John | Huron North | Conservative Party |
| Joynt, Robert L. | Grenville | Conservative Party |
| Jutten, Thomas William | Hamilton Centre | Conservative Party |