West Portland Park is a neighborhood in the Southwest section of Portland, Oregon. It lies between SW 53rd Ave. in the west and SW 35th Ave. in the east, and I-5 in the north and SW Stephenson St. in the south. South of SW Pomona St., the western border is SW 49th Ave. The neighborhood borders Crestwood and Far Southwest to the west, Multnomah to the north, Markham and Arnold Creek to the east, and the city of Lake Oswego to the south.