Alder Branch is an unincorporated community in Sevier County, Tennessee, United States. It is accessible via Tennessee Secondary Primary Route 338, outside of the city of Sevierville. The area is named for the Alder Branch Baptist Church founded in 1836, which itself is named for the Alder Branch stream which flows through the area.
William Atchley, a locally famous Baptist preacher and member of the church, deeded a portion of his property to the Alder Branch Baptist Church and Cemetery where he now lies in state.
Alder Branch is located at 35°55′18″N 83°33′19″W / 35.92167°N 83.55528°W and has a mean elevation of 948 feet (289 metres)