Bremen /ˈbri.mən/ is an unincorporated town in Cullman County, Alabama, United States.

In order to prevent confusion with Empire in Walker County, the name was changed in 1879 by the town's first postmaster, James Macentepe.

According to the U.S. Census Bureau the land area of the CCD is about 148.16 square miles (88.9 km2).

Bremen was listed on the 1880 U.S. Census as an unincorporated community with a population of 51.

According to the 2000 census, the Bremen census county division (which also included Colony, part of Dodge City, and part of Good Hope) had a population of 8,198 with a population density of about 33.2/km2 (55.3/sq mi).