Ancaster—Dundas—Flamborough—Westdale (provincial electoral district)
| Ontario electoral district | |
|---|---|
Ancaster—Dundas—Flamborough—Westdale in relation to other southwestern Ontario electoral districts | |
| Defunct provincial electoral district | |
| Legislature | Legislative Assembly of Ontario |
| District created | 2004 |
| District abolished | 2015 |
| First contested | 2007 |
| Last contested | 2014 |
| Demographics | |
| Population (2006) | 111,844 |
| Electors (2007) | 82,367 |
| Area (km²) | 744 |
| Census division(s) | Hamilton |
| Census subdivision(s) | Hamilton |
Ancaster—Dundas—Flamborough—Westdale was a provincial electoral district in southwestern Ontario, Canada. It was created for the 2007 provincial election. 82.9% of the riding came from Ancaster—Dundas—Flamborough—Aldershot while 17.1% came from Hamilton West.
The riding included all of Hamilton west of a line running along Glancaster Road then to Garner Road then to a Hydroelectric Transmission Line then to Highway 403 to Hamilton Harbour.
In 2018, the district was dissolved into Hamilton West—Ancaster—Dundas and Flamborough—Glanbrook.