The coronation of Charles III and his wife, Camilla, as king and queen of the United Kingdom and the other Commonwealth realms is scheduled to take place on Saturday, 6 May 2023, at Westminster Abbey. Charles acceded to the throne on 8 September 2022, upon the death of his mother, Elizabeth II.

Compared with previous coronations, the ceremony will undergo some alterations to represent multiple faiths, cultures, and communities across the United Kingdom, and will be shorter than Elizabeth II's coronation in 1953. The ceremony will begin with the anointing of Charles, symbolising his spiritual entry into kingship, and then his crowning and enthronement, representing his assumption of temporal powers and responsibilities. Camilla will be crowned in a shorter and simpler ceremony. The royal family will travel to Buckingham Palace in a state procession and appear on the balcony to celebrate the occasion.

In addition to the ceremony, the coronation will be marked by public celebrations. On 7 May, the Coronation Big Lunch will take place, providing the public with the opportunity to mark the occasion with street parties. The Coronation Concert will be held on the same day at Windsor Castle with representatives of the King and the Queen's charities as well as members of the general public in attendance. On 8 May, the Big Help Out initiative will take place to encourage community service and volunteering. Both the coronation at Westminster Abbey and the concert at Windsor Castle will be broadcast on television and streamed online.

This will be the first coronation of a British monarch to occur in the 21st century, and the 40th to be held at Westminster Abbey since 1066.