Gray is a census-designated place (CDP) in Washington County, Tennessee, United States and a rural suburb of Johnson City. It is part of the Johnson City Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area – commonly known as the "Tri-Cities" region. The population was 1,222 at the 2010 census.
Gray lies just outside the junction between Interstate 81 and Interstate 26, the latter of which runs directly through the town. The town was founded as Gray Station, Tennessee, as it mainly served as a railway depot; the town became Gray for preferred usage. The Gray area consisted primarily of rural farmland until the 1990s, when some suburban areas began to take shape. Since 2000, the Gray area has gradually grown each year, with the addition of new chain restaurants and a museum known as the Gray Fossil Site. Some of the area has been annexed by Johnson City.
Since Gray's only public elementary school, Gray Elementary, was becoming overpopulated, a new school named Ridgeview Elementary was completed in 2008. Gray Elementary School's population was about 1000+ children, but when Ridgeview was built both schools had a population of about 600+ children in 2008. Gray's only high school, Daniel Boone High School, teaches nearly half of Washington County's high school children.