Rank |
Name |
Nation(s) |
Born |
Ascended |
Years reigned |
1. |
Bhumibol Adulyadej |
Thailand |
01927-12-05-00005 December 1927 |
01946-06-09-00009 June 1946 |
700168000000000000068 years, 70003000000000000003 days |
2. |
Elizabeth II |
Commonwealth realms[1] |
01926-04-21-000021 April 1926 |
01952-02-06-00006 February 1952 |
700162000000000000062 years, 7002126000000000000126 days |
3. |
Abdul Halim |
Kedah (Malaysia)[2] |
01927-11-28-000028 November 1927 |
01958-07-14-000014 July 1958 |
700155000000000000055 years, 7002333000000000000333 days |
4. |
Sikiru Kayode Adetona |
Ijebuland (Nigeria) |
01934-05-10-000010 May 1934 |
01960-01-04-00004 January 1960 |
700154000000000000054 years, 7002159000000000000159 days |
5. |
Hassanal Bolkiah |
Brunei |
01946-07-15-000015 July 1946 |
01967-10-05-00005 October 1967 |
700146000000000000046 years, 7002250000000000000250 days |
6. |
Goodwill Zwelithini kaBhekuzulu |
Zulu people (South Africa) |
01948-07-14-000014 July 1948 |
01968-09-17-000017 September 1968 |
700145000000000000045 years, 7002268000000000000268 days |
7. |
Qaboos bin Said al Said |
Oman |
01940-11-18-000018 November 1940 |
01970-07-23-000023 July 1970 |
700143000000000000043 years, 7002324000000000000324 days |
8. |
Margrethe II |
Denmark |
01940-04-16-000016 April 1940 |
01972-01-14-000014 January 1972 |
700142000000000000042 years, 7002149000000000000149 days |
9. |
Sultan bin Mohamed Al-Qassimi III |
Sharjah (United Arab Emirates) |
01939-07-02-00002 July 1939 |
01972-01-25-000025 January 1972 |
700142000000000000042 years, 7002138000000000000138 days |
10. |
Carl XVI Gustaf |
Sweden |
01946-04-30-000030 April 1946 |
01973-09-15-000015 September 1973 |
700140000000000000040 years, 7002270000000000000270 days |
11. |
Ahmad Shah |
Pahang (Malaysia) |
01930-10-24-000024 October 1930 |
01974-05-07-00007 May 1974 |
700140000000000000040 years, 700136000000000000036 days |
12. |
Hamad bin Mohammed Al Sharqi |
Fujairah (United Arab Emirates) |
01948-08-25-000025 August 1948 |
01974-09-18-000018 September 1974 |
700139000000000000039 years, 7002267000000000000267 days |
13. |
Juan Carlos I |
Spain |
01938-01-05-00005 January 1938 |
01975-11-22-000022 November 1975 |
700138000000000000038 years, 7002202000000000000202 days |
14. |
Humaid bin Rashid Al Nuaimi |
Ajman (United Arab Emirates) |
01931-01-01-00001931 |
01981-09-06-00006 September 1981 |
700132000000000000032 years, 7002279000000000000279 days |
15. |
Azlan Muhibbuddin Shah |
Perak (Malaysia) |
01928-04-19-000019 April 1928 |
01984-02-03-00003 February 1984 |
700130000000000000030 years, 7002129000000000000129 days |
16. |
Mswati III |
Swaziland |
01968-04-19-000019 April 1968 |
01986-04-25-000025 April 1986 |
700128000000000000028 years, 700148000000000000048 days |
17. |
Akihito |
Japan |
01933-12-23-000023 December 1933 |
01989-01-07-00007 January 1989 |
700125000000000000025 years, 7002156000000000000156 days |
18. |
Hamengkubuwana X |
Yogyakarta (Indonesia) |
01946-04-02-00002 April 1946 |
01989-03-07-00007 March 1989 |
700125000000000000025 years, 700197000000000000097 days |
19. |
Hans-Adam II |
Liechtenstein |
01945-02-14-000014 February 1945 |
01989-11-13-000013 November 1989 |
700124000000000000024 years, 7002211000000000000211 days |
20. |
Letsie III |
Lesotho |
01963-07-17-000017 July 1963 |
01990-11-12-000012 November 1990 |
700123000000000000023 years, 7002212000000000000212 days |
21. |
Harald V |
Norway |
01937-02-21-000021 February 1937 |
01991-01-17-000017 January 1991 |
700123000000000000023 years, 7002146000000000000146 days |
22. |
Muwenda Mutebi II |
Buganda (Uganda) |
01955-04-13-000013 April 1955 |
01993-07-24-000024 July 1993 |
700120000000000000020 years, 7002323000000000000323 days |
23. |
Oyo Nyimba Kabamba Iguru Rukidi IV |
Toro (Uganda) |
01992-04-16-000016 April 1992 |
01995-09-13-000013 September 1995 |
700118000000000000018 years, 7002272000000000000272 days |
24. |
Mizan Zainal Abidin |
Terengganu (Malaysia) |
01962-01-22-000022 January 1962 |
01998-05-15-000015 May 1998 |
700116000000000000016 years, 700128000000000000028 days |
25. |
Abdullah II |
Jordan |
01962-01-30-000030 January 1962 |
01999-02-07-00007 February 1999 |
700115000000000000015 years, 7002125000000000000125 days |
26. |
Hamad bin Isa Al Khalifa |
Bahrain |
01950-01-28-000028 January 1950 |
01999-03-06-00006 March 1999 |
700115000000000000015 years, 700198000000000000098 days |
27. |
Otumfuo Nana Osei Tutu II |
Ashanti people (Ghana) |
01950-05-06-00006 May 1950 |
01999-04-26-000026 April 1999 |
700115000000000000015 years, 700147000000000000047 days |
28. |
Paku Alam IX |
Pakualaman (Indonesia) |
01938-05-07-00007 May 1938 |
01999-05-26-000026 May 1999 |
700115000000000000015 years, 700117000000000000017 days |
29. |
Mohammed VI |
Morocco |
01963-08-21-000021 August 1963 |
01999-07-23-000023 July 1999 |
700114000000000000014 years, 7002324000000000000324 days |
30. |
Tuanku Syed Sirajuddin |
Perlis (Malaysia) |
01943-05-16-000016 May 1943 |
02000-04-17-000017 April 2000 |
700114000000000000014 years, 700156000000000000056 days |
31. |
Henri |
Luxembourg |
01955-04-16-000016 April 1955 |
02000-10-07-00007 October 2000 |
700113000000000000013 years, 7002248000000000000248 days |
32. |
Sharafuddin Idris Shah |
Selangor (Malaysia) |
01945-10-24-000024 October 1945 |
02001-11-21-000021 November 2001 |
700112000000000000012 years, 7002203000000000000203 days |
33. |
Norodom Sihamoni |
Cambodia |
01953-05-14-000014 May 1953 |
02004-10-14-000014 October 2004 |
70009000000000000009 years, 7002241000000000000241 days |
34. |
Khalifa bin Zayed Al Nahyan |
Abu Dhabi (United Arab Emirates) |
01945-01-25-000025 January 1945 |
02004-11-03-00003 November 2004 |
70009000000000000009 years, 7002221000000000000221 days |
35. |
Albert II |
Monaco |
01958-03-14-000014 March 1958 |
02005-04-06-00006 April 2005 |
70009000000000000009 years, 700167000000000000067 days |
36. |
Abdullah |
Saudi Arabia |
01924-08-01-00001 August 1924 |
02005-08-01-00001 August 2005 |
70008000000000000008 years, 7002315000000000000315 days |
37. |
Mohammed bin Rashid Al Maktoum |
Dubai (United Arab Emirates) |
01949-07-22-000022 July 1949 |
02006-01-04-00004 January 2006 |
70008000000000000008 years, 7002159000000000000159 days |
38. |
Sabah Al-Ahmad Al-Jaber Al-Sabah |
Kuwait |
01929-06-16-000016 June 1929 |
02006-01-29-000029 January 2006 |
70008000000000000008 years, 7002134000000000000134 days |
39. |
Tuheitia Paki |
Māori King (New Zealand) |
01955-04-21-000021 April 1955 |
02006-08-21-000021 August 2006 |
70007000000000000007 years, 7002295000000000000295 days |
40. |
Jigme Khesar Namgyel Wangchuck |
Bhutan |
01980-02-21-000021 February 1980 |
02006-12-15-000015 December 2006 |
70007000000000000007 years, 7002179000000000000179 days |
41. |
Kapiliele Faupala |
Wallis Island (Uvea) (Wallis and Futuna) |
01940-01-01-00001940 |
02008-06-25-000025 June 2008 |
70005000000000000005 years, 7002352000000000000352 days |
42. |
Tunku Muhriz |
Negeri Sembilan (Malaysia) |
01948-01-14-000014 January 1948 |
02008-12-29-000029 December 2008 |
70005000000000000005 years, 7002165000000000000165 days |
43. |
Saud bin Rashid Al Mu'alla |
Umm al-Quwain (United Arab Emirates) |
01952-10-01-00001 October 1952 |
02009-01-02-00002 January 2009 |
70005000000000000005 years, 7002161000000000000161 days |
44. |
Charles Mumbere |
Rwenzururu (Uganda) |
01953-01-01-00001953 |
02009-10-19-000019 October 2009 |
70004000000000000004 years, 7002236000000000000236 days |
45. |
Ibrahim Ismail |
Johor (Malaysia) |
01958-11-22-000022 November 1958 |
02010-01-22-000022 January 2010 |
70004000000000000004 years, 7002141000000000000141 days |
46. |
Polikalepo Kolivai |
Sigave (Wallis and Futuna) |
01939-01-01-00001939 |
02010-07-07-00007 July 2010 |
70003000000000000003 years, 7002340000000000000340 days |
47. |
Muhammad V |
Kelantan (Malaysia) |
01969-10-06-00006 October 1969 |
02010-09-13-000013 September 2010 |
70003000000000000003 years, 7002272000000000000272 days |
48. |
Saud bin Saqr al Qasimi |
Ras al-Khaimah (United Arab Emirates) |
01956-02-10-000010 February 1956 |
02010-10-27-000027 October 2010 |
70003000000000000003 years, 7002228000000000000228 days |
49. |
Tupou VI |
Tonga |
01959-07-12-000012 July 1959 |
02012-03-18-000018 March 2012 |
70002000000000000002 years, 700186000000000000086 days |
50. |
Francis |
Vatican City |
01936-12-17-000017 December 1936 |
02013-03-13-000013 March 2013 |
70001000000000000001 year, 700191000000000000091 days |
51. |
Willem-Alexander |
Netherlands |
01967-04-27-000027 April 1967 |
02013-04-30-000030 April 2013 |
70001000000000000001 year, 700143000000000000043 days |
52. |
Tamim bin Hamad Al Thani |
Qatar |
01980-06-03-00003 June 1980 |
02013-06-25-000025 June 2013 |
50000000000000000000 years, 7002352000000000000352 days |
53. |
Philippe |
Belgium |
01960-04-15-000015 April 1960 |
02013-07-21-000021 July 2013 |
50000000000000000000 years, 7002326000000000000326 days |