Fermoy is a town in County Cork, Ireland. Fermoy may also refer to:
Places Fermoy (barony), County Cork; near the Irish town Fermoy, Minnesota, United States Fermoy, Ontario, Canada
Other Baron Fermoy, title in the Peerage of Ireland created in 1856 for Edmond Roche Fermoy GAA, club based in the Irish town HMS Fermoy (J40), a Hunt-class minesweeper of the Royal Navy that served during both World War I and World War II