The Queen and Prince Philip will be at the service. Downing Street has sent 2,000 invitations out to foreign dignitaries, UK politicians and family friends of Baroness Thatcher.
The guestlist was drawn up after discussions between Lady Thatcher's family, her representatives the government and the Conservative Party.
Those who will receive invitations to the 11am ceremonial service include ex-US Secretary of State Hillary Clinton and Top Gear presenter Jeremy Clarkson.
Confirmed guests so far include her successor Sir John Major, Tony Blair and wifeCherie, Gordon and Sarah Brown and current Prime Minister David Cameron.
Labour leader Ed Miliband, Scottish First Minister Alex Salmond, Welsh First Minister Carwyn Jones, Northern Ireland First Minister Peter Robinson and London mayor Boris Johnson will also attend.
Former South Africa leader FW de Klerk, singers Dame Shirley Bassey and Katherine Jenkins, composer Lord Lloyd Webber and wife Madeleine and Lord Jeffrey Archer with wife Mary will also be in the congregation.
Former Republican congressman Newt Gingrich, actor Michael Crawford - most famous for his roles in Some Mothers Do 'Ave 'Em and Phantom of the Opera, and Sir Tim Berners-Lee, inventor of the world wide web have accepted their invitations.
Singers Dame Vera Lynn and Elaine Paige, actors Sir Michael Caine and Robert Hardy and veteran wildlife broadcaster Sir David Attenborough will all be at St Paul's.
Others on the guestlist are Olympics supremo and? Joan Collins, broadcasters Sir Terry Wogan, Sir Trevor McDonald and SirDavid Frost, fashion designer Anya Hindmarch, sitcom queen June Whitfield and lyricist Tim Rice.
Celebrity chef Marco Pierre White, artist Michael Noakes, who painted her portrait, writer William Shawcross, veteran newsreader Martyn Lewis, motor racing's Sir Frank Williams, Antiques Roadshow presenter Hugh Scully and Daily Mail editor Paul Dacre have all confirmed they will attend.
All surviving former US Presidents - Jimmy Carter, George Bush, Bill Clinton and George W. Bush - a Reagan family representative, and former US Secretary of State Hillary Clinton were invited to the event. But President Barack Obama announced a Presidential delegation would be sent led by George Shultz and James Baker III, Secretaries of State from the Thatcher era. Also part of the delegation are Barbara Stephenson, Charge d'Affaires at the US Embassy in London, and Louis Susman, former American Ambassador to the UK and Northern Ireland. Former US vice-president Dick Cheney and ex-secretary of state Henry Kissinger will also be there but not as part of the delegation.
Germany leader Angela Merkel was invited but is instead sending Foreign Minister Guido Westerwelle. Spanish PM Mariano Rajoy is also staying away. Argentina's ambassador has turned down his invitation.
Ten members of staff from the Ritz hotel, where Lady Thatcher died on Monday, have also been invited to her funeral as thanks for the care she received. The 87-year-old had been staying at the five-star hotel since Christmas.
Family, friends and colleagues will also be at the ceremonial service, which will take place with full military honours.??????????
Other confirmed attendees include:
- Michael Portillo and his wife Carolyn
- Lord Charles Powell, Lady Thatcher's former private secretary
- Lord Carrington, Margaret Thatcher's first Foreign Secretary and later head of NATO
- Canadian Prime Minister Stephen Harper
- Former Canadian Prime Minister Brian Mulrooney, who was in office from 1984 to 1993
- Former Australian Prime Minister John Howard, and wife Janette, representing Australia
- Lord and Lady Harris of Peckham. Lord Harris is a Tory donor and chairman of Carpetright.
- Lord Maurice Saatchi. Saatchi & Saatchi was the advertising firm behind the famous 'Labour isn't working' poster used in the 1979 election campaign which saw Margaret Thatcher become Prime Minister
- Journalist Andrew Neil, who presents the BBC's This Week, Daily Politics and Sunday Politics
- Metropolitan Police commissioner Sir Bernard Hogan-Howe
- Businessman Gerald Ronson, who was jailed for his part in the Guinness shares scandal
- Sir Bernard Ingham, chief press secretary to Margaret Thatcher during her years as Prime Minister, and his wife
- Director of The British Forces Foundation Mark Cann
- Archbishop of York Most Rev John Sentamu
- Two-time US presidential candidate Ross Perot
- Military guests including: General Sir David Richards, Field Marshal Lord Bramall, Marshal of the Royal Air Force Lord Craig of Radley, General Sir Peter Wall, Field Marshal Sir John Chapple, Air Chief Marshal Sir Stephen Dalton, Air Chief Marshal Sir Stuart Peach, Major General Ed Davis and General Sir Michael Jackson
- International dignitaries include: Italy Prime Minister Mario Monti; His Highness Sheikh Jaber Mubark Al-Sabah, Prime Minister of Kuwait; Sheikh Nasser Sabah Al-Ahmed Al Sabah, son of the Ruler of Kuwait and Minister of the Amiri Diwan (Kuwait),; Valdis Dombrovskis, Latvia's Prime Minister; Ruud Lubbers former Dutch Prime Minister; Donald Tusk, Poland's Prime Minister; Crown Prince Pavlos and Princess Marie-Chantal of Greece
- Other guests include: Lady Solti, Lord Sterling of Plaistow, Stuart Wheeler, Sir Robert Worcester, Philip Woodhouse, of Grocers Hall, Michael Cox, of The Worshipful Company of Vintners, The Lord Grabiner QC, The Honourable Society of Lincoln's Inn, Mark Wood, of the NSPCC, Sir Roy Newman, Stephen Boateng, of International Democrat Union, Farhad Moshim, Frank Field MP, Keith Vaz MP, Sir Leonard Appleyard, Sir Anthony Bamford, the Chairman of JCB, Sir George Christie, Lady Annabel Goldsmith and George Goring, of Goring Hotels.
Those who can expect to receive invitations to attend or send a representative include:
- All surviving members of Lady Thatcher’s Cabinets, from close allies like Norman Tebbit to old enemy Michael Heseltine and Geoffrey Howe who played a key role in bringing her down
- The current Cabinet
- Thriller writer Frederick Forsyth
- President of the European Commission Manuel Barroso
- Malaysia's former Prime Minister Mahathir Mohamad, who was in power from 1981 to 2003
- A representative of Nelson Mandela
- all surviving members of her Cabinets
- former Chiefs of Staff
- Conservative associates
- Some Peers and MPs
- Members of the Cabinet
- Members of the Order of the Garter
- Members of the Order of Merit
St Paul's can hold 2,300 people and is expected to be full.
Invitations will be sent out on Friday 12 April. The white VIP invitations will see guests seated under the Cathedral's famous dome. A red or green stripe will show whether they are to sit on the port or starboard side. Other invitations are colour-coded relating to where guests are to be seated in the cathedral.
Guests at the funeral will be asked to wear full day ceremonial dress without swords, morning dress with a black waistcoat and black tie or dark suit, day dress with hat. Medals and decorations may be worn.
A spokeswoman said: "Those invited include family and friends of Lady Thatcher, those who worked with her over the years, including all surviving members of her Cabinets, former Chiefs of Staff, Conservative associates, peers and MPs, members of the Cabinet, peers and MPs, members of the Order of the Garter, members of the Order of Merit, foreign associates and dignitaries and representatives from the wide range of groups she was associated with.
"In agreement with Lady Thatcher's representatives, around 200 states, territories and international organisations are being invited to send an official representative to the funeral service.
"We have invited those countries and institutions with whom we have normal diplomatic relations. In addition, there are invitations being made in a personal capacity to some current and former world leaders as well as others from overseas who had a close connection to Baroness Thatcher."
Mikhail Gorbachev will not be attending due to ill health, and Nancy Reagan whose husband Ronald worked closely with Thatcher as the Cold War drew to an end, has said she cannot attend due to her age.
Lord Kinnock, Labour leader during most of the Thatcher years, will not be there as he had already promised to go to the funeral of a councillor in his old constituency.???????????