Gilmer County is a county located in the north central portion of the U.S. state of Georgia. As of the 2020 census, the population was 31,353. The county seat is Ellijay. named for a historic Cherokee town also spelled as Elejoy in the eighteenth century. The county was created on December 3, 1832, and was named for George Rockingham Gilmer, a politician who served two non-consecutive terms as governor of the state. Gilmer County is home of the annual Apple Festival, which is held in mid-October. Ninety percent of the land is in cropland and forest. Poultry raising and processing makes up the largest portion of the agricultural economy, which generates 33.2% of the total revenues. Manufacturing is about 20%.

Ellijay, occasionally spelled Elijay, is a city in Gilmer County, Georgia, United States. The population was 1,862 at the 2020 census. The city is the county seat of Gilmer County.