AncasterâÂÂDundasâÂÂFlamboroughâÂÂWestdale was a provincial electoral district in southwestern Ontario, Canada. It was created for the 2007 provincial election. 82.9% of the riding came from AncasterâÂÂDundasâÂÂFlamboroughâÂÂAldershot 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 WestâÂÂAncasterâÂÂDundas and FlamboroughâÂÂGlanbrook.