| 1945 Canadian federal election: Welland | ||||||||
|---|---|---|---|---|---|---|---|---|
| Party | Candidate | Votes | % | ±% | ||||
| Liberal | Humphrey Mitchell | 19,522 | 43.6 | +1.3 | ||||
| Progressive Conservative | Thomas Oscar Oliver | 14,637 | 32.7 | |||||
| Co-operative Commonwealth | Harland Roy Potter | 7,383 | 16.5 | -5.3 | ||||
| Farmer–Labour | Fern A. Sayles | 3,258 | 7.3 | |||||
| Total valid votes | 44,800 | 100.0 | ||||||