Her Majesty's Prisons (His Majesty's Prisons in the case of a male monarch) is the name given to prisons in the United Kingdom, including some in Australia and a small number in Canada, Grenada and Barbados. The title makes up part of the name of individual prisons and is usually abbreviated to HM Prison or HMP.
The title of HM Prison is given to a fair number of prisons in Australia.
The title of HM Prison is given to Dodds Prison in St. Philip, and the former Glendairy Prison in Station Hill, St. Michael.
The Belize Museum was formerly a HM prison.
Her Majesty's Penitentiary at 85 Forest Road in St. John's, Newfoundland — built in 1859, still operational as a mens and womens correctional facility of the Department of Justice and Public Safety of Newfoundland and Labrador.
The title of Her Majesty's Prisons (Grenada) is given to the Richmond Hill Prison in Saint George's, Grenada. The prison was built by the French in 1860 as a Military Hospital and was converted into a Prison in 1880.