The funeral of Queen Mary (born Princess Victoria Mary of Teck), widow to King George V, took place on 31 March 1953 at St George's Chapel, Windsor Castle, following her death on 24 March and subsequent lying in state at Westminster Hall.

Her death occurred two months short of her 86th birthday and ten weeks before the coronation of her granddaughter, Queen Elizabeth II.

In her final year, Mary was profoundly affected by the death of her son King George VI, the third of her children to predecease her.

[4][7] Her eldest son, the Duke of Windsor, had visited her twice during the day, and returned to Marlborough House for a third time ten minutes after his mother's death.

[4] Both the Princess Royal and the Duke of Windsor had cut short their holidays in the United States and the West Indies as their mother's condition worsened.

[3] The day after her death, courts and the London Stock Exchange observed a short silence before starting business.

[4] On 25 March, the Queen's Own Rifles of Canada, of which Mary was colonel-in-chief, held a regimental parade dedicated to her memory.

[14] Mary's coffin was placed at the Queen's Chapel in the grounds of Marlborough House on 26 March, where it was guarded by members of her household.

[15] At 2:29 pm the coffin was then taken from Marlborough House to Westminster Hall for her lying in state, on a route that was a mile and a half long.

[14] Following them were the massed bands of the Brigade of Gurkhas, two of Queen Mary's footmen, two of her pages, and her steward.

[14] The gun carriage was escorted by three pallbearers on either side flanked on the outside by the bearer party from the Queen's Company of the Grenadier Guards.

[14] The Queen and other female members of the royal family did not follow the coffin on foot, but instead took their place within the chapel ahead of its arrival.

[14][18] 1,500 mourners, including foreign dignitaries, attended the funeral service, which was conducted by the Archbishop of Canterbury and the Dean of Windsor and broadcast by the BBC on radio.

[18] The Garter Principal King of Arms read out the titles and styles of Queen Mary towards the end of the ceremony.

[1] Mary's body was taken to the Royal Vault before being interred next to her husband's beneath a monumental sarcophagus in the North Nave Aisle of St George's Chapel.