John Michael Allen-Petrie OBE (born 5 July 1980), is a genealogist of Scottish Canadian extraction who, as a member of the British Royal Household,^[1] serves as Windsor Herald at the College of Arms in London since 2019.^[2]

Born in Canada to John Petrie, he attended Collège Jean-de-Brébeuf at Montreal, then Sciences Po in Paris, before pursuing further studies at LSE (MSc) and Oriel College, Oxford (MSc).^[3]

An analyst with the Bank of England from 2008 until 2015,^[4] Allen-Petrie joined the College of Arms as Rouge Croix Pursuivant in 2013,^[5][6] being promoted Windsor Herald of Arms in Ordinary in 2019.^[7]

A Liveryman of the Drapers' Company,^[8] he was elected a Common Councilman for Billingsgate Ward (2018–22).^[9]

• OBE: Officer of the Most Excellent Order of the British Empire (2021)
• CStJ: Commander of the Most Venerable Order of Saint John (2023)^[10]
  • Queen Elizabeth II Platinum Jubilee Medal
  • King Charles III Coronation Medal^[11]
  • Royal Household Badge

Allen-Petrie processed as Windsor Herald at the Coronation of Charles III and Camilla.^[12]

Coat of arms of John Allen-Petrie^[13]

Crest Within a Coronet a Demi-Stag Or attired and unguled Azure transfixed by an Arrow bendwise Or barbed and flighted Azure Escutcheon Azure a Saltire embattled parted Or Motto Je te plumerai (Ang: "I shall pluck you") Orders Surrounding the Shield, the Circlet of the Order of St John:

Heraldic offices
Preceded by David White	Rouge Croix Pursuivant 2013 – 2019	Succeeded by Thomas Johnston
Preceded by William Hunt	Windsor Herald 2019 – present	Incumbent