Find MPP by name:
| MPP | Riding Sort ascending | Party |
|---|---|---|
| Isaacs, Colin Francis Weeber | Wentworth | New Democratic Party of Ontario |
| Isley, Theodore Henry | Waterloo South | Co-operative Commonwealth Federation |
| Irish, Mark Howard | Toronto Northeast — Seat B | Conservative Party |
| Irvine, McCausland | Perth South | Conservative Party |
| Innes, Gordon William | Oxford | Ontario Liberal Party |
| Innes, Hugh Paterson | Norfolk North | Conservative Party |
| Ireland, William Henry | Hastings West | Conservative Party |
| Ingram, Andrew B. | Elgin West | Conservative Party |
| Irvine, Donald Roy | Carleton—Grenville | Progressive Conservative Party of Ontario |