Aberdeen is a village in Brown County, Ohio, United States, along the Ohio River. The population was 1,603 at the 2000 census.
Aberdeen is connected to Maysville, Kentucky by the Simon Kenton Memorial Bridge to downtown Maysville and the William H. Harsha Bridge, a cable-stayed bridge completed in 2001. It was part of Zane's Trace, a frontier road through the Northwest Territory completed in 1797.
Aberdeen was founded in 1816 on the north shore of the Ohio River, at the site where a ferry had sprung up at the terminus of Zane's Trace.