Fountain City is a neighborhood in northern Knoxville, Tennessee.   At the time of its annexation by the city of Knoxville in 1962, Fountain City was the largest unincorporated community in the United States with a population of approximately 30,000.

Upon annexation into the City of Knoxville, the suburb maintained its own identity with immense community pride. It remains a desirable place to work and to live. Fountain City is unique. It has a sense of its history, including places and people who made a difference in life within the community and beyond it.

The main road in Fountain City is Broadway, a section of U.S. Highway 441 which connects Fountain City to Halls (where it becomes Maynardville Highway) to the north and downtown Knoxville to the south. Interstate 640 passes along Fountain City's southern boundary, and Interstate 75 passes through the western part of the community. Other important roads include Merchants Drive/Cedar Lane, which connects Broadway to I-75, and Tazewell Pike (part of State Highway 331), which connects Fountain City with Gibbs to the northeast.

Fountain City was voted the best suburban community in Tennessee in 1986 by People magazine.