Alexandre Lesiège
| Alexandre Le Siège | |
|---|---|
| Country | Canada | 
| Born | 18 August 1975 Montreal, Quebec | 
| Title | Grandmaster (1999) | 
| FIDE rating | 2503 (June 2025) | 
| Peak rating | 2589 (October 2001) | 
Alexandre Le Siège (born 18 August 1975 in Montreal), also known as Alexandre Lesiège, is a Canadian chess player who holds the FIDE title of Grandmaster. He has won three Canadian championships and represented Canada in world championship qualifying events and Olympiads.