Matlock is an unincorporated community in Mason County, Washington, United States. Matlock is the primary population center for the western part of Mason County, a sporadically populated logging area. The most notable sites are the church, food bank, general store, post office, local grange hall, and the Mary M. Knight school, grades kindergarten through senior high school. Matlock features nearby lakes and recreational opportunities, including fishing, hiking, hunting, and horseback riding.