Munhall (mŭn´hôl), borough (1990 pop. 13,158), Allegheny co., SW Pa., a suburb of Pittsburgh, on the Monongahela River; inc. 1901. The once-large steel- and ironworks there have declined significantly along with the national steel industry. Office furniture and insulation tape are manufactured. Munhall was a site of the Homestead strike in 1892.