The Prince Edward Island Liberal Party leadership election of 2003 was held on April 5, 2003 to elect a new leader of the party. Ron MacKinley had served as interim leader since 2000.
| First Ballot | |||
|---|---|---|---|
| Candidate | Votes | Perc. | |
| Robert Ghiz | 2065 | 52.03% | |
| Alan Buchanan | 1904 | 47.97% | |
| Spoiled Ballots | 10 | 0.25% | |
| Totals | 3,979 | 100% | |
Ghiz elected.