| Ontario Open Heritage Classic | |
| Location: | Ontario, Canada |
| Establishment: | 1999 |
| Tour: | Canadian Tour |
| Format: | Stroke play |
| Final Year: | 2002 |
| Aggregate: | 264 Arron Oberholser (1999) |
| To-Par: | −20 Arron Oberholser (1999) |
| Final Champion: |  Mike Grob |
The Ontario Open Heritage Classic was a golf tournament on the Canadian Tour that was held in Ontario, Canada. It was founded in 1999, three years after the long-standing Ontario Open was last played, and ran for four years, through 2002. It was hosted at a different venue every year.
In the inaugural tournament, Arron Oberholser set a new Canadian Tour record for the largest winning margin when he finished 11 strokes ahead of Ian Leggatt and Tony Carolan.[1]
| Year | Venue | Winner | Score | Ref | |
|---|---|---|---|---|---|
| 2002 | Grandview | 274 (−14) | [2] | ||
| 2001 | Fort William | 272 (−16) | [3] | ||
| 2000 | Osprey Links | 204 (−9) | [4] | ||
| 1999 | Sault Ste. Marie | 264 (−20) |