- Queen Elizabeth II
- 95:292 year(s):day(s)
- United Kingdom ()
The oldest monarch currently reigning is Her Majesty Queen Elizabeth II (UK, b. 21 April 1926), who celebrated her 95th birthday on 21 April 2021
Queen Elizabeth II became the world’s oldest monarch on 23 January 2015, aged 88 years 277 and days, following the death of His Majesty King Abdullah Bin Abdulaziz Al Saud (Saudi Arabia), who died at the age of 90.