is an unincorporated community and census-designated place in Madison County, Alabama, United States, and is included in the Huntsville-Decatur Combined Statistical Area. As of the 2000 census, the population of the community is 3,805.
The town of Hazel Green was named by United States President Andrew Jackson. Jackson named the town "Hazel Green" because the hazel bushes along the road were of a vibrant green color. Hazel Green was once an incorporated town in the mid-1800s, but was later unincorporated. At the time, Hazel Green was a small, rural community that served a crossroads. Roads connected Hazel Green with Athens to the west, Winchester, TN to the east, Huntsville to the south, and Nashville to the north. These roads intersected at what is now known as the intersection of US Highway 231/431, Joe Quick Road, and West Limestone Road.
On April 3, 1974, Hazel Green was hit by an F5 tornado. This tornado was part of the Super Outbreak of 1974.