West Slope is an unincorporated suburb of Portland, Oregon, U.S. and a census-designated place. It is in Washington County, to the west of Portland's West Hills neighborhood, to the northeast of Raleigh Hills and south of U.S. Route 26.
As of the 2000 census, the suburb population was 6,442.
In a plan agreed to by the county and Beaverton, West Slope is scheduled for annexation to Beaverton by 2010.