Masury is a census-designated place (CDP) in Trumbull County, Ohio, United States. The population was 2,618 at the 2000 census. It is part of the Youngstown–Warren–Boardman, OH-PA Metropolitan Statistical Area.
At 7:00 p.m. on May 31, 1985, Masury was struck by an F-5 tornado as it passed through Hubbard into Wheatland, Pennsylvania. The base of the tornado spread over half a mile and wind speed was estimated at over 300 mph. The storm moved through Masury quickly and went on to destroy nearly 95% of Wheatland's industrial area.
Masury is located at 41°12′28″N 80°32′12″W / 41.20778°N 80.53667°W / 41.20778; -80.53667 (41.207736, -80.536628).