Baileyton is a town in Cullman County, Alabama, United States. At the 2010 census the population was 610.
The town's mayor is Johnny Dyar.
Baileyton was settled in 1870 by Robert Bailey, a farmer from Georgia. A post office was established in Baileyton in 1883. The town was incorporated in 1973.
Baileyton is located in northeastern Cullman County at 34°16′2″N 86°36′11″W (34.267139, -86.603018). The town lies northeast of the city of Cullman along State Route 69, with its municipal boundary reaching northeastward to State Route 67. The town of Fairview lies just to the west along SR 69, and the Joppa community lies opposite SR 67 to the northeast.
According to the U.S. Census Bureau, the town has a total area of 5.3 square miles (13.8 km2), of which 5.3 square miles (13.6 km2) is land and 0.04 square miles (0.1 km2), or 1.06%, is water.
As of the census of 2000, there were 684 people, 281 households, and 196 families in the town. The population density was 128.6 people per square mile (49.6/km2). There were 305 housing units at an average density of 57.4 per square mile (22.1/km2). The racial makeup of the town was 99.56% White, 0.29% Native American and 0.15% Asian.