- Queen Elizabeth II
- United Kingdom (London)
The oldest British Queen is Queen Elizabeth II (UK, b. 21 April 1926), who took the record from her great, great grandmother, Queen Victoria (1819-1901), on 21 December 2007 aged 81 years 244 days. Offically, Queen Elizabeth surpassed Queen Victoria at 5 pm GMT on 20 December 2007 (taking into account Queen Victoria's hour of birth and death).
If still on the throne, Queen Elizabeth will surpass Queen Victoria's record for the longest reigning British monarch on 9 September 2015.