Bethany is an unincorporated community and census-designated place in Washington County, Oregon, United States.

It is situated north of U.S. Route 26 and Oak Hills, near Beaverton, approximately four miles northwest of Cedar Mill, and is within the Portland metropolitan area.

The name Bethany was first applied to a crossroads trading center about two miles northeast of the current location, where a Presbyterian church stands today.

[3][4] As of the census[5] of 2010, there were 20,646 people, 7,205 households, and 5,579 families residing in Bethany.

18.6% of all households were made up of individuals, and 6.6% had someone living alone who was 65 years of age or older.