Galion is a city in Crawford, Morrow, and Richland counties in the U.S. state of Ohio. The population was 10,512 at the 2010 census. Galion is the second-largest city in Crawford County after Bucyrus.
The Crawford County portion of Galion is part of the Bucyrus Micropolitan Statistical Area. The small portion of the city that is located in Richland County is part of the Mansfield Metropolitan Statistical Area, while the portion extending into Morrow County is considered part of the Columbus Metropolitan Statistical Area.
Settlers arrived in the area as early as 1817. The location was at the crossroads of a north-south road from Columbus to Portland (now known as Sandusky), and the east-west route that later became (part of) the Lincoln Highway and subsequently the Harding Highway.
The name Galion was suggested in 1824 by a postmaster as a unique name when the city first obtained a post office, because the name that was originally proposed would have duplicated the names of other requested Ohio post offices. It is not known for certain whether the name was intended to have any particular meaning otherwise, although several possible etymologies have been posited. The first plat of the settlement, recorded in Richland County, actually gave the community's name as "Greensburg."
A date often given for the founding of the city is 1831.
Galion was also home to William Montgomery Brown, a bishop of the Episcopal Church who was tried by the church and convicted of heresy. The first northerner elected as a bishop in a former Confederate state after the Civil War, Brown was, according to his obituary, "the first Bishop of his communion to be tried for heresy since the Reformation, and the first of any creed in America to be disposed for heretical teachings." His house, Brownella Cottage, is owned and operated by the Galion Historical Society, and the Galion History Museum is located in the carriage house on the Brownella grounds.