Alderwood Manor is a census-designated place (CDP) in Snohomish County, Washington, United States.

According to the United States Census Bureau, the CDP has a total area of 4.8 square miles (12.4 km2).

Parts of Alderwood Manor lie in the Lynnwood MUGA (Municipal Urban Growth Area).

Depending on location, buildings in Alderwood Manor may use either Lynnwood, Bothell, or Brier mailing addresses.

Alderwood Manor was a community that is now the cities of Lynnwood, Brier, and Mountlake Terrace.

The Manor Hardware building (originally used as a schoolhouse in the early 1900s, but which had been vacant for many years) was demolished in 2015.