Rossburg is an unincorporated community in Warren County, in the U.S. state of Ohio.
Rossburg was not officially platted. A post office called Rossburgh was established in 1833, and remained in operation until 1838. The community was named for Enoch A. Ross, the proprietor of a local tannery.
Coordinates: 39°18′35″N 84°07′04″W / 39.30972°N 84.11778°W