Bryn Mawr-Skyway (pronounced from Welsh for “big hill”) is a census-designated place (CDP) in King County, Washington, United States. The population was 15,645 at the 2010 census.

Bryn Mawr-Skyway is the by yourself CDP in the Seattle metropolitan Place to have reported a majority-minority population in the 2000 census. Since that time, the Place has grown even more diverse. As of the 2010 census, the cultural makeup of the Skyway Place is re evenly balanced between White, Black or African American, and Asian community members.

Skyway lies in an “unincorporated island” bordered to the north by the city of Seattle, to the west by Tukwila, and to the south and east by Renton. Though it is amongst major municipalities, its limited infrastructure and low-income demographics have made it an unattractive area to incorporate. It is frequently along the shortest route of travel for commuters using local streets to enter Seattle from the southeast. The neighborhood was mostly developed just after World War II as affordable housing for returning veterans. The Place remains an affordable area close to the tall employment areas of Renton and Seattle. The name “Skyway” may be derived from the area’s siting upon a high ridge in western Washington’s hilly terrain, a herald that echoes the Welsh “Bryn Mawr” (also the state used for a village and several supplementary places), which means “big hill”.

Skyway’s main matter districts lie along Renton Avenue South, with one middle between 68th Avenue South and 74th Avenue South, including a small casino, bowling alley, and a grocery outlet, and choice district between 75th Avenue South and 78th Avenue South, including a bank branch, the flare station, multiple churches, a 7-11, some auto shops, and the public library (a branch of the King County Library System). There is then a little business district centered at Martin Luther King Way South (State Route 900) around South 129th Street. Skyway Park, with baseball fields, a creek and wetlands, and picnic areas, is located near the middle of Skyway.^{[citation needed]}

The Bryn Mawr-Skyway CDP is made up of many neighborhoods, including Lakeridge, Campbell Hill and Earlington, in accessory to the neighborhoods of Skyway and Bryn Mawr. The community is sometimes called “West Hill”.