Lorain is a city located in Lorain County within the state of Ohio, United States. It sits in Northeast Ohio on the southern shore of Lake Erie at the mouth of the Black River, approximately twenty-five miles west of Cleveland. As a statutory city operating under the Ohio Constitution without a charter, it serves as the most populous municipality in Lorain County and ranks as the third-most populous city in the Greater Cleveland metropolitan area.

The settlement began as an unincorporated village known as Black River Village before 1834, later briefly renamed Charleston in 1837. Residents rejected the new name, and the community was officially incorporated as Lorain in 1874, becoming a city in 1896 with Conrad Reid as its first mayor. The area's history includes the devastating 1924 Lorain–Sandusky tornado, which killed seventy-two people in the city, including fifteen in a collapsed theater, marking the worst single-building tornado death toll in Ohio.

The urban landscape is defined by its industrial heritage along the lakefront and river. Major historical sites include the American Ship Building Company yard, the Ford Motor Company assembly plant, and the United States Steel Corporation mill. Key landmarks feature the Charles Berry Bridge, the Lorain West Breakwater Light, and Lakeview Park, which was established in 1917 to provide public lakefront access and contains a historic rose garden dedicated in 1932.

Cultural life centers on community festivals and historical preservation. The annual Lorain International Festival features a pageant celebrating diverse heritages, while the Fire Fish Festival supports independent artists in September. Visitors can explore the Lorain Palace Theatre, opened in 1928, or visit the Lorain Historical Society, which operates since 1981 to preserve local history through exhibits and programs at its location in a historic home known as the Moore House.

The city had a population of 65,211 as of the 2020 census. Its economy has shifted from heavy industry to face challenges typical of Rust Belt cities, including population decline and urban decay, though it remains home to CenturyTel of Ohio. Accessible via Route 6 and Route 57, with transit connections through Lorain County Transit, the city offers a distinct lakeside environment in Northeast Ohio.