Austinburg is a census-designated place in northern Austinburg Township, Ashtabula County, Ohio, United States. Although it is unincorporated, it has a post office, with the ZIP code of 44010. It lies at the intersection of State Routes 45 and 307. As of the 2010 census it had a population of 516, out of a total population of 2,197 in Austinburg Township.
Austinburg was laid out ca. 1800 by Judge Aliphalet Austin, and named for him.