William Edward Mattocks House is a historic home located at Swansboro, Onslow County, North Carolina. It was started in 1901 and completed in the 1910s. It is a 1+1⁄2-story, Colonial Revival style frame dwelling. It has board-and-batten siding, a steeply pitched gable roof with dormers, and two-tier engaged porch. Also on the property is a similar 1+1⁄2-story frame house built about 1931 and operated as a cafe.