10th Parliament of Ontario
The 10th Legislative Assembly of Ontario was in session from May 29, 1902, until December 13, 1904, just prior to the 1905 general election. The majority party was the Ontario Liberal Party led by George William Ross.
William Andrew Charlton served as speaker for the assembly.
Members of the Assembly
Italicized names indicate members returned by acclamation.Timeline
| Seat | Incumbent | Party | Vacated | Reason | By-election |
| Grey North | Alexander Grant MacKay | November 21, 1902 | Election declared void | January 7, 1903 | |
| York North | Elihu James Davis | February 6, 1903 | Resignation in exchange for withdrawal of election petition | February 26, 1903 | |
| Bruce Centre | Hugh Clark | February 6, 1903 | Election declared void | February 26, 1903 |