Longest-reigning queen
Elizabeth II
68:75 year(s):day(s)
Not Applicable ()

The longest-reigning queen is Her Majesty Queen Elizabeth II (UK, b. 21 April 1926), who succeeded to the throne on 6 February 1952 following the death of her father, King George VI. As of 21 April 2020 – the day of her 94rd birthday – Queen Elizabeth II had reigned without interruption for 68 years 75 days.

On 9 September 2015, Queen Elizabeth II's reign equalled and exceeded that of Queen Victoria, which had lasted 63 years 216 days from 20 June 1837 to 22 January 1901.