# List of current reigning monarchs by length of reign

This is a list of reigning monarchs sorted by length of service.
This list includes monarchs who do not reign over entire nations, such as Muhammad V of Kelantan, but does not include former monarchs and pretenders, such as Simeon II of Bulgaria, ex officio monarchs such as Emmanuel Macron who in his capacity as President of France is also Co-Prince of Andorra, monarchs without physical territories such as the Prince and Grand Master of the Sovereign Military Order of Malta, constituent monarchs such as the traditional African rulers, or monarchs whose position is unofficial, such as Tenzin Gyatso, 14th Dalai Lama.
Hassanal Bolkiah is the longest-reigning existing monarch, having been Sultan of Brunei since 5 October 1967. He became the longest-reigning monarch upon the death of Elizabeth II of the United Kingdom on 8 September 2022.

## List

| Rank | Monarch | State | Country | Born | Current age | Acceded | Years reigned |
| Reigns as of 8 March 2025 T 08:00 (UTC) ||||||||
| 1 | Hassanal Bolkiah | Brunei | Brunei | 15 July 1946 | 78 years, 236 days | 5 October 1967 | 57 years, 154 days |
| 2 | Sultan bin Mohamed Al-Qassimi III | Sharjah | United Arab Emirates | 6 July 1939 | 85 years, 245 days | 25 January 1972 | 53 years, 42 days |
| 3 | Carl XVI Gustaf | Sweden | Sweden | 30 April 1946 | 78 years, 312 days | 15 September 1973 | 51 years, 174 days |
| 4 | Hamad bin Mohammed Al Sharqi | Fujairah | United Arab Emirates | 22 February 1949 | 76 years, 14 days | 18 September 1974 | 50 years, 171 days |
| 5 | Humaid bin Rashid Al Nuaimi III | Ajman | United Arab Emirates | 1 January 1931 | 94 years, 66 days | 6 September 1981 | 43 years, 183 days |
| 6 | Mswati III | Eswatini | Eswatini | 19 April 1968 | 56 years, 323 days | 25 April 1986 | 38 years, 317 days |
| 7 | Hans-Adam II | Liechtenstein | Liechtenstein | 14 February 1945 | 80 years, 22 days | 13 November 1989 | 35 years, 115 days |
| 8 | Harald V | Norway | Norway | 21 February 1937 | 88 years, 15 days | 17 January 1991 | 34 years, 50 days |
| 9 | Letsie III | Lesotho | Lesotho | 17 July 1963 | 61 years, 234 days | 7 February 1996 | 33 years, 100 days |
| 10 | Mizan Zainal Abidin | Terengganu | Malaysia | 22 January 1962 | 63 years, 45 days | 15 May 1998 | 26 years, 297 days |
| 11 | Abdullah II | Jordan | Jordan | 30 January 1962 | 63 years, 37 days | 7 February 1999 | 26 years, 29 days |
| 12 | Hamad bin Isa Al Khalifa | Bahrain | Bahrain | 28 January 1950 | 75 years, 39 days | 6 March 1999 | 26 years, 2 days |
| 13 | Mohammed VI | Morocco | Morocco | 21 August 1963 | 61 years, 199 days | 23 July 1999 | 25 years, 228 days |
| 14 | Syed Sirajuddin | Perlis | Malaysia | 17 May 1943 | 81 years, 295 days | 17 April 2000 | 24 years, 325 days |
| 15 | Henri | Luxembourg | Luxembourg | 16 April 1955 | 69 years, 326 days | 7 October 2000 | 24 years, 152 days |
| 16 | Sharafuddin Idris Shah | Selangor | Malaysia | 11 December 1945 | 79 years, 87 days | 22 November 2001 | 23 years, 106 days |
| 17 | Norodom Sihamoni | Cambodia | Cambodia | 14 May 1953 | 71 years, 298 days | 14 October 2004 | 20 years, 145 days |
| 18 | Albert II | Monaco | Monaco | 14 March 1958 | 66 years, 359 days | 6 April 2005 | 19 years, 336 days |
| 19 | Mohammed bin Rashid Al Maktoum | Dubai | United Arab Emirates | 15 July 1949 | 75 years, 236 days | 4 January 2006 | 19 years, 63 days |
| 20 | Jigme Khesar Namgyel Wangchuck | Bhutan | Bhutan | 21 February 1980 | 45 years, 15 days | 9 December 2006 | 18 years, 89 days |
| 21 | Muhriz | Negeri Sembilan | Malaysia | 14 January 1948 | 77 years, 53 days | 29 December 2008 | 16 years, 69 days |
| 22 | Saud bin Rashid Al Mualla | Umm al-Quwain | United Arab Emirates | 1 October 1952 | 72 years, 158 days | 2 January 2009 | 16 years, 65 days |
| 23 | Ibrahim Iskandar | Johor | Malaysia | 22 November 1958 | 66 years, 106 days | 23 January 2010 | 15 years, 44 days |
| 24 | Muhammad V | Kelantan | Malaysia | 6 October 1969 | 55 years, 153 days | 13 September 2010 | 14 years, 176 days |
| 25 | Saud bin Saqr Al Qasimi | Ras al-Khaimah | United Arab Emirates | 10 February 1956 | 69 years, 26 days | 27 October 2010 | 14 years, 132 days |
| 26 | Tupou VI | Tonga | Tonga | 12 July 1959 | 65 years, 239 days | 18 March 2012 | 12 years, 355 days |
| 27 | Francis | Vatican City | Vatican City | 17 December 1936 | 88 years, 81 days | 13 March 2013 | 11 years, 360 days |
| 28 | Willem-Alexander | Netherlands | Netherlands | 27 April 1967 | 57 years, 315 days | 30 April 2013 | 11 years, 312 days |
| 29 | Tamim bin Hamad Al Thani | Qatar | Qatar | 3 June 1980 | 44 years, 278 days | 25 June 2013 | 11 years, 256 days |
| 30 | Philippe | Belgium | Belgium | 15 April 1960 | 64 years, 327 days | 21 July 2013 | 11 years, 230 days |
| 31 | Nazrin Muizzuddin Shah | Perak | Malaysia | 27 November 1956 | 68 years, 101 days | 29 May 2014 | 10 years, 283 days |
| 32 | Felipe VI | Spain | Spain | 30 January 1968 | 57 years, 37 days | 19 June 2014 | 10 years, 262 days |
| 33 | Salman bin Abdulaziz Al Saud | Saudi Arabia | Saudi Arabia | 31 December 1935 | 89 years, 67 days | 23 January 2015 | 10 years, 44 days |
| 34 | Vajiralongkorn (Rama X) | Thailand | Thailand | 28 July 1952 | 72 years, 223 days | 13 October 2016 | 8 years, 146 days |
| 35 | Mahmud Sallehuddin | Kedah | Malaysia | 30 April 1942 | 82 years, 312 days | 11 September 2017 | 7 years, 178 days |
| 36 | Abdullah Sultan Ahmad Shah | Pahang | Malaysia | 30 July 1959 | 65 years, 221 days | 15 January 2019 | 6 years, 52 days |
| 37 | Naruhito | Japan | Japan | 23 February 1960 | 65 years, 13 days | 1 May 2019 | 5 years, 311 days |
| 38 | Haitham bin Tariq Al Said | Oman | Oman | 11 October 1954 | 70 years, 148 days | 11 January 2020 | 5 years, 56 days |
| 39 | Mohamed bin Zayed Al Nahyan | Abu Dhabi | United Arab Emirates | 11 March 1961 | 63 years, 362 days | 13 May 2022 | 2 years, 299 days |
| 40 | Charles III | Antigua and Barbuda | Antigua and Barbuda | 14 November 1948 | 76 years, 114 days | 8 September 2022 | 2 years, 181 days |
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| 41 | Mishal Al-Ahmad Al-Jaber Al-Sabah | Kuwait | Kuwait | 27 September 1940 | 84 years, 162 days | 16 December 2023 | 1 year, 82 days |
| 42 | Frederik X | Denmark | Denmark | 26 May 1968 | 56 years, 286 days | 14 January 2024 | 1 year, 53 days |