Weirton () is a city in Brooke and Hancock counties in the U.S. state of West Virginia. Located primarily in Hancock County, the city lies in the northern portions of the state's Northern Panhandle region. As of the 2010 census, the city's population was 19,746. Weirton is a principal city of the Weirton–Steubenville, WV-OH Metropolitan Statistical Area, which had a 2010 population of 124,454 residents. Additionally, Weirton is part of Greater Pittsburgh, the 20th largest combined statistical area in the United States with a 2019 estimated population of 2,635,228.
The small village called Holliday's Cove lanes — which is now most of downtown Weirton — was founded in 1793. (It eventually lost the apostrophe.) In 1909, Ernest T. Weir arrived from neighboring Pittsburgh and built a steel mill, later known as the Weirton Steel Corporation, just north of Holliday's Cove. An unincorporated settlement called Weirton grew up around the mill that, by 1940, was said to be the largest unincorporated city in the United States. By then Hollidays Cove and two other outlying areas, Weirton Heights and Marland Heights, which as their names suggest were on hilltops or ridges surrounding the "Weir–Cove" area, had also incorporated.
Hollidays Cove Fort was a Revolutionary War fortification constructed in 1774 by soldiers from Ft.