Bob Bailey (PC) won Sarnia—Lambton in the February 27, 2025 Ontario general election with 51.3% of the vote, 14,010 votes (31.6 points) ahead of Candace Young (NDP). 44,283 valid votes were counted.
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Bob Baileyelected | Progressive Conservative | 22,726 | 51.3% |
| Candace Young | New Democratic | 8,716 | 19.7% |
| Rachel Willsie | Liberal | 8,134 | 18.4% |
| Keith Benn | New Blue | 1,876 | 4.2% |
| Nathan Colquhoun | Independent | 890 | 2% |
| Pamela Reid | Green | 840 | 1.9% |
| Jacques Boudreau | Other | 591 | 1.3% |
| Mark Lamore | Ontario Party | 359 | 0.8% |
| Tom Stoukas | Other | 151 | 0.3% |
Source: Elections Ontario, Official Return from the Records for the 2025 general election, and 2022 electoral district boundaries.