FERMOY, a market-town of Ireland, county of Cork, situated on the Blackwater river, 20 miles N.E. of Cork, and 137 miles from Dublin. Previous to 1791, Fermoy was a mere hamlet, but about that time the proprietor, Mr Anderson, commenced a series of improvements; and shortly afterwards infantry and cavalry barracks were erected, commanding an important pass of the Blackwater, which is one of the principal northern approaches to Cork. The river is here crossed by a stone bridge of 13 arches, erected in 1689. Besides the parish church and Roman Catholic chapel—both elegant edifices—Fermoy has also a Roman Catholic college, a nunnery, court-house, theatre, bridewell, and workhouse. It has likewise several extensive flour mills, two paper mills, and a considerable trade in flour and agricultural produce. Market-day, Saturday. Pop. (1851) 5844, besides 2682 in workhouse.