Holbrook is an unincorporated community in Multnomah County, Oregon, United States.[1] It is located on U.S. Route 30 about 15 miles northwest of Portland between the Tualatin Mountains and the Multnomah Channel south of Sauvie Island.[2] Holbrook's elevation is 135 feet above sea level.[1]
The community was named for pioneer Philo Holbrook, who owned a farm nearby.[3] Holbrook had a post office from 1887 to 1933.[3]