The Ambassador from the United Kingdom to Iraq is the United Kingdom's foremost diplomatic representative in Iraq, and head of the UK's diplomatic mission in Iraq. The official title is His Britannic Majesty's Ambassador to the Republic of Iraq.

• 1920–1923: Sir Percy Cox^[1]
• 1923–1929: Sir Henry Dobbs^[2]
• 1929: Sir Gilbert Clayton^[3]
• 1929–1932: Sir Francis Humphrys^[4]

• 1932–1935: Sir Francis Humphrys
• 1935–1937: Sir Archibald Clark Kerr
• 1937–1939: Sir Maurice Peterson
• 1939–1941: Sir Basil Newton
• 1941–1945: Sir Kinahan Cornwallis
• 1945–1948: Sir Hugh Stonehewer-Bird
• 1948–1951: Sir Henry Mack^[5]
• 1951–1954: Sir John Troutbeck^[6]
• 1954–1958: Sir Michael Wright^[7]

• 1958–1961: Sir Humphrey Trevelyan
• 1961–1965: Sir Roger Allen
• 1965–1967: Sir Richard Beaumont^[8]
• 1967–1968: Break in diplomatic relations due to the Six-Day War^[9]
• 1968–1969: Trefor Evans^[10]
• 1969–1971: Glencairn Balfour Paul
• 1971–1974: Break in diplomatic relations following Iran's seizure of the Tunb islands
• 1974–1977: John Graham
• 1977–1980: Alexander Stirling
• 1980–1982: Stephen Egerton
• 1982–1985: Sir John Moberly
• 1985–1989: Terence Clark
• 1990–1991: Sir Harold Walker
• 1991–2004: Break in diplomatic relations following the First Gulf War
• 2004–2005: Edward Chaplin
• 2005–2006: William Patey
• 2006–2007: Dominic Asquith
• 2007–2009: Christopher Prentice
• 2009–2011: John Jenkins
• 2011–2012: Michael Aron
• 2012–2014: Simon Paul Collis
• 2014–2017: Frank Baker^[11]
• 2017–2019: Jonathan Wilks^[12]
• 2019–2021: Stephen Hickey
• 2021–2023: Mark Bryson-Richardson^[13]
• 2023–present^[update]: Stephen Hitchen^[14]

• British-Iraqi relations

• Iraq and the UK , gov.uk