10th Canadian Parliament By-elections By-elections

| By_election | Date_ | Incumbent | Party_3 | Winner | Party_5 | Cause | Retained_ |
|---|---|---|---|---|---|---|---|
| Shelburne and Queen`s | October 31, 1906 | William Stevens Fielding | Liberal | William Stevens Fielding | Liberal | Election declared void | Yes |
| Bruce North | October 30, 1906 | Leonard Thomas Bland | Liberal-Conservative | John Tolmie | Liberal | Death | No |
| Quebec County | October 23, 1906 | Charles Fitzpatrick | Liberal | Lorenzo Robitaille | Independent Liberal | Appointed Chief Justice of the Supreme Court of Canada | No |
| St. Johns—Iberville | October 16, 1906 | Louis Philippe Demers | Liberal | Marie Joseph Demers | Liberal | Appointed Puisne Judge of the Superior Court of Quebec | Yes |
| Elgin East | October 14, 1906 | Andrew B. Ingram | Liberal-Conservative | David Marshall | Conservative | Appointed Vice Chairman of the Ontario Railway and Municipal Commission | Yes |
| Renfrew North | October 9, 1906 | Peter White | Conservative | Gerald Verner White | Conservative | Death | Yes |