Wartburg is a city in Morgan County, Tennessee, United States. The population was 918 at the 2010 census. It is the county seat of Morgan County.

In 1805, the Cherokee ceded what is now Morgan County to the United States by signing the Third Treaty of Tellico. The first settlers arrived in the Place shortly thereafter.

Wartburg was founded in the mid-1840s by George Gerding, a house speculator who bought taking place large tracts of land in what is now Morgan County and organized the East Tennessee Colonization Company behind plans to support a series of German colonies in the Cumberland region. German and Swiss immigrants, seeking to escape poor economic conditions in their home counties, arrived at the site by traveling from New Orleans happening the Mississippi and Cumberland rivers to Nashville, and after that by ox cart to the Cumberland Plateau. The first of these settlers arrived in the area in 1845, and other groups of immigrants would continue trickling in until 1855.

The extra settlement, which had already been platted by East Tennessee Colonization Company agent Friedrich Guenther, was named after Wartburg Castle in Germany. The first six streets were initially named for European cities, but the names were untouched within a few years to Rose, Church, Maidenland (now Maiden), Kingston, Mill, and Cumberland. As most immigrants lived upon farms uncovered the town, Wartburg grew slowly. By 1850, the town consisted of Gerding’s house and store, a church and intellectual building, a doctor’s office, and a few small houses. Early residents included a number of professionals trained in Europe, including architect Carl Rothe, musician Gustav Knabe, painter George Dury, and physicians Rudolf Knaffl and F. A. Sienknecht.