📌 The Ontario electoral district of Sarnia-Lambton was contested in the 2003 election.

🏆 CAROLINE DI COCCO, the Liberal candidate, won the riding with 18,179 votes (47.5% of the vote).

🥈 The runner-up was HENK VANDEN ENDE (Progressive Conservative) with 11,852 votes (31.0%), defeated by a margin of 6,327 votes.

📊 Other notable candidates: GLENN SONIER (NDP, 17%).