British vehicle registration for Brighton
• international civil aircraft marking for Ecuador
• Hague Convention
• Headmasters' (or Headteachers') Conference
• health certificate
• Heralds' College
• High Church
• High Commission(er)
• High Court
• higher certificate
• highly commended
• Computing high-speed CMOS
• Highway Code
• hockey club
• Holy Communion
• home counties
• hors concours (French: not competing)
• House of Clergy
• House of Commons
• house of correction
• housing centre
• housing corporation