| Honorific-Prefix: | Air Marshal Sir |
| Ian Macfadyen | |
| Order: | 27th |
| Office: | Lieutenant Governor of the Isle of Man |
| Term Start: | 25 October 2000 |
| Term End: | 1 February 2005 |
| Predecessor: | Sir Timothy Daunt |
| Successor: | Sir Paul Haddacks |
| Birth Date: | 19 February 1942 |
| Birthname: | Ian David Macfadyen |
| Nationality: | British |
| Spouse: | Sally Macfadyen |
| Children: | Simon Macfadyen, Kate Comaish |
| Alma Mater: | Marlborough College |
| Occupation: | Retired |
| Allegiance: | United Kingdom |
| Branch: | Royal Air Force |
| Serviceyears: | 1960–99 |
| Rank: | Air Marshal |
| Commands: | British Forces Middle East RAF Leuchars No. 23 Squadron No. 29 Squadron |
| Battles: | Falklands War Gulf War |
| Mawards: | Knight Commander of the Royal Victorian Order Companion of the Order of the Bath Officer of the Order of the British Empire Queen's Commendation for Valuable Service in the Air |
| Relatives: | (all grandchildren) |
| Ian Macfadyen (2000-2005) | |
| Dipstyle: | His Excellency |
| Offstyle: | Your Excellency |
Sir Ian David Macfadyen, (born 19 February 1942) is a senior Royal Air Force officer, a former Lieutenant Governor of the Isle of Man (2000–05) and Constable and Governor of Windsor Castle (2009–14).
Born the son of Air Marshal Sir Douglas Macfadyen, Ian Macfadyen was educated at Marlborough College and entered the RAF College Cranwell in 1960. Like his father, he graduated with the Sword of Honour.[1]
After service on 19 Squadron in the UK and RAF Germany flying the Lightning, in 1970 he became a flying instructor and a member of the Poachers formation aerobatic team[2] at the Royal Air Force College Cranwell.
In 1980 as a wing commander he was appointed Officer Commanding of No. 29 Squadron flying F4 Phantom aircraft at RAF Coningsby with whom he saw operational service in the Falkland Islands,[2] and Officer Commanding of No. 23 Squadron in 1983.[1]
In 1985 as a group captain he was Station Commander at RAF Leuchars in FifeHe was at the Royal College of Defence Studies in 1988.In late 1990 he became the Chief of Staff, Headquarters British Forces Middle East and later became the Commander of British Forces. From 1991 as an Air Vice-Marshal he was[1] Assistant Chief of the Defence Staff, Operational Requirements (Air Systems) – ACAS OR (Air).
In 1994 he was promoted to Air Marshal and became Director General of the Saudi Arabia Armed Forces Project in Riyadh.[1]
He retired from the RAF in February 1999.[1]
In October 2000 Macfadyen was appointed Lieutenant Governor of the Isle of Man.[2]
From 2006 to 2008 he was the National President of the Royal British Legion[3] and later the Honorary Inspector General of the Royal Auxiliary Air Force.
In October 2009 Macfadyen became Constable and Governor of Windsor Castle in succession to Vice Admiral Ian Jenkins.[4] Before retirement from this post in July 2014, Macfadyen was knighted by the Queen as a Knight Commander of the Royal Victorian Order in a private ceremony in Windsor Castle.
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