HMP

Government & Politics abbreviation · UK Government

HMP
Stands forHis Majesty's Prison
CategoriesGovernment & Politics

HMP stands for His Majesty's Prison, a UK government abbreviation.

Prefix used in the names of prisons in the UK, as in HMP Belmarsh or HMP Wandsworth, and in prisoners' addresses. Young offender institutions use the prefix HMYOI instead.

Example: Letters should be addressed to the prisoner at HMP Wandsworth with his prison number.

Usage notes

The prefix changed from "Her" to "His" Majesty's Prison after the accession of King Charles III in 2022. Most prisons are run by HMPPS, though some are privately operated under contract and still carry the HMP name. Category A prisons hold those considered the most dangerous.

More UK government abbreviations

  • GCHQ – Government Communications Headquarters
  • GLA – Greater London Authority
  • GMC – General Medical Council
  • HM – His Majesty
  • HMCTS – His Majesty's Courts and Tribunals Service
  • HMG – His Majesty's Government
  • HMPPS – His Majesty's Prison and Probation Service
  • HMRC – His Majesty's Revenue and Customs
  • HMT – His Majesty's Treasury
  • HoC – House of Commons
  • HoL – House of Lords
  • HSE – Health and Safety Executive

See all 91 UK government abbreviations →