List of current prime ministers by date of assumption of office

This is a list of current prime ministers of the world's sovereign states by the date they took office, from the earliest to the latest.

Hun Sen of Cambodia is the longest-serving current prime minister, having taken office on 14 January 1985.

List
Country Political system Name Assumption Current length
 Cambodia Constitutional monarchy Hun Sen 14 January 1985 36 years, 21 days
 Samoa Parliamentary republic Tuilaepa Aiono Sailele Malielegaoi 23 November 1998 22 years, 73 days
 Saint Vincent and the Grenadines Constitutional monarchy Ralph Gonsalves 28 March 2001 19 years, 313 days
 Dominica Parliamentary republic Roosevelt Skerrit 8 January 2004 17 years, 27 days
 Singapore Parliamentary republic Lee Hsien Loong 12 August 2004 16 years, 176 days
Germany Parliamentary republic Angela Merkel 22 November 2005 15 years, 66 days
 United Arab Emirates Constitutional monarchy Mohammed bin Rashid Al Maktoum 11 February 2006 14 years, 359 days
 Fiji Parliamentary republic Frank Bainimarama 5 January 2007 14 years, 30 days
 Bangladesh Parliamentary republic Sheikh Hasina 6 January 2009 12 years, 29 days
 Israel Parliamentary republic Benjamin Netanyahu 31 March 2009 11 years, 310 days
 Hungary Parliamentary republic Viktor Orbán 29 May 2010 10 years, 251 days
 Netherlands Constitutional monarchy Mark Rutte 14 October 2010 10 years, 113 days
 Niger Semi-presidential republic Brigi Rafini 7 April 2011 9 years, 303 days
 Grenada Constitutional monarchy Keith Mitchell 20 February 2013 7 years, 350 days
 Djibouti Parliamentary republic Abdoulkader Kamil Mohamed 1 April 2013 7 years, 309 days
 Albania Parliamentary republic Edi Rama 15 September 2013 7 years, 142 days
 Norway Constitutional monarchy Erna Solberg 16 October 2013 7 years, 111 days
 Tajikistan Parliamentary republic Kokhir Rasulzoda 23 November 2013 7 years, 73 days
 Luxembourg Constitutional monarchy Xavier Bettel 4 December 2013 7 years, 62 days
 Thailand Constitutional monarchy Prayut Chan-o-cha 25 August 2014 6 years, 163 days
 India Parliamentary republic Narendra Modi 26 May 2014 6 years, 254 days
 Antigua and Barbuda Constitutional monarchy Gaston Browne 13 June 2014 6 years, 236 days
 Uganda Parliamentary republic Ruhakana Rugunda 18 September 2014 6 years, 139 days
 Sweden Constitutional monarchy Stefan Löfven 3 October 2014 6 years, 124 days
 Mozambique Semi-presidential republic Carlos Agostinho do Rosário 17 January 2015 6 years, 18 days
 Saudi Arabia Absolute monarchy Salman 23 January 2015 6 years, 12 days
 Saint Kitts and Nevis Constitutional monarchy Timothy Harris 18 February 2015 5 years, 352 days
 Namibia Parliamentary republic Saara Kuugongelwa 21 March 2015 5 years, 320 days
 Trinidad and Tobago Parliamentary republic Keith Rowley 9 September 2015 5 years, 148 days
 Canada Constitutional monarchy Justin Trudeau 4 November 2015 5 years, 92 days
 Tanzania Parliamentary republic Kassim Majaliwa 20 November 2015 5 years, 76 days
 Portugal Semi-presidential republic António Costa 26 November 2015 5 years, 70 days
 Jamaica Constitutional monarchy Andrew Holness 3 March 2016 4 years, 338 days
 Libya Provisional government Fayez al-Sarraj 30 March 2016 4 years, 311 days
 Vietnam Parliamentary republic Nguyễn Xuân Phúc 7 April 2016 4 years, 303 days
 Laos Parliamentary republic Thongloun Sisoulith 20 April 2016 4 years, 290 days
 Cape Verde Semi-presidential republic Ulisses Correia e Silva 22 April 2016 4 years, 288 days
 Republic of the Congo Semi-presidential republic Clément Mouamba 23 April 2016 4 years, 287 days
 Saint Lucia Constitutional monarchy Allen Chastanet 7 June 2016 4 years, 242 days
 Equatorial Guinea Semi-presidential republic Francisco Pascual Obama Asue 23 June 2016 4 years, 226 days
 Croatia Parliamentary republic Andrej Plenković 19 October 2016 4 years, 108 days
 Estonia Parliamentary republic Jüri Ratas 23 November 2016 4 years, 73 days
 Uzbekistan Parliamentary republic Abdulla Aripov 14 December 2016 4 years, 52 days
 Mauritius Parliamentary republic Pravind Jugnauth 23 January 2017 4 years, 12 days
 Bulgaria Parliamentary republic Boyko Borisov 4 May 2017 3 years, 276 days
 The Bahamas Constitutional monarchy Hubert Minnis 11 May 2017 3 years, 269 days
 Serbia Parliamentary republic Ana Brnabić 29 June 2017 3 years, 220 days
 Rwanda Parliamentary republic Édouard Ngirente 30 August 2017 3 years, 158 days
 Mongolia Semi-presidential republic Ukhnaagiin Khürelsükh 4 October 2017 3 years, 123 days
 New Zealand Constitutional monarchy Jacinda Ardern 26 October 2017 3 years, 101 days
 Iceland Parliamentary republic Katrín Jakobsdóttir 30 November 2017 3 years, 66 days
 Poland Semi-presidential republic Mateusz Morawiecki 11 December 2017 3 years, 54 days
 Czech Republic Parliamentary republic Andrej Babiš 13 December 2017 3 years, 53 days
   Nepal Parliamentary republic Khadga Prasad Oli 15 February 2018 2 years, 355 days
 Ethiopia Parliamentary republic Abiy Ahmed 2 April 2018 2 years, 308 days
 Armenia Parliamentary republic Nikol Pashinyan 8 May 2018 2 years, 272 days
 Guinea Parliamentary republic Ibrahima Kassory Fofana 24 May 2018 2 years, 256 days
 Barbados Constitutional monarchy Mia Mottley 25 May 2018 2 years, 255 days
 Italy Parliamentary republic Giuseppe Conte 1 June 2018 2 years, 248 days
 Spain Constitutional monarchy Pedro Sánchez 2 June 2018 2 years, 247 days
 Madagascar Semi-presidential republic Christian Ntsay 6 June 2018 2 years, 243 days
 Egypt Semi-presidential republic Moustafa Madbouly 7 June 2018 2 years, 242 days
 East Timor Semi-presidential republic Taur Matan Ruak 22 June 2018 2 years, 227 days
 Pakistan Parliamentary republic Imran Khan 18 August 2018 2 years, 170 days
 Australia Constitutional monarchy Scott Morrison 24 August 2018 2 years, 164 days
 Yemen Provisional government Maeen Abdulmalik Saeed 18 October 2018 2 years, 109 days
 Bhutan Constitutional monarchy Lotay Tshering 7 November 2018 2 years, 89 days
 São Tomé and Príncipe Semi-presidential republic Jorge Bom Jesus 3 December 2018 2 years, 63 days
 Cameroon Parliamentary republic Joseph Ngute 4 January 2019 2 years, 31 days
 Latvia Parliamentary republic Krišjānis Kariņš 23 January 2019 2 years, 12 days
 Burkina Faso Semi-presidential republic Christophe Joseph Marie Dabiré 24 January 2019 2 years, 11 days
 Kazakhstan Parliamentary republic Askar Mamin 21 February 2019 1 year, 349 days
 Central African Republic Parliamentary republic Firmin Ngrébada 27 February 2019 1 year, 343 days
 Solomon Islands Constitutional monarchy Manasseh Sogavare 24 April 2019 1 year, 286 days
 Papua New Guinea Constitutional monarchy James Marape 30 May 2019 1 year, 250 days
 Denmark Constitutional monarchy Mette Frederiksen 27 June 2019[1] 1 year, 222 days
 Greece Parliamentary republic Kyriakos Mitsotakis 8 July 2019 1 year, 211 days
 United Kingdom Constitutional monarchy Boris Johnson 24 July 2019 1 year, 195 days
 Sudan Parliamentary republic Abdalla Hamdok 21 August 2019 1 year, 167 days
 Democratic Republic of the Congo Semi-presidential republic Sylvestre Ilunga 7 September 2019 1 year, 150 days
 Georgia Parliamentary republic Giorgi Gakharia 8 September 2019 1 year, 149 days
 Tuvalu Parliamentary republic Kausea Natano 19 September 2019 1 year, 138 days
 Azerbaijan Semi-presidential republic Ali Asadov 8 October 2019 1 year, 119 days
 Tonga Constitutional monarchy Pohiva Tuʻiʻonetoa 8 October 2019 1 year, 119 days
 Moldova Parliamentary republic Ion Chicu 14 November 2019 1 year, 82 days
 Kuwait Constitutional monarchy Sabah Al-Khalid Al-Sabah 19 November 2019 1 year, 77 days
 Sri Lanka Semi-presidential republic Mahinda Rajapaksa 21 November 2019 1 year, 75 days
 Finland Parliamentary republic Sanna Marin 10 December 2019 1 year, 56 days
 Cuba One-party state Manuel Marrero Cruz 21 December 2019 1 year, 45 days
 Bosnia and Herzegovina Federal parliamentary constitutional republic Zoran Tegeltija 23 December 2019 1 year, 43 days
 Algeria Parliamentary republic Abdelaziz Djerad 28 December 2019 1 year, 38 days
 Malta Parliamentary republic Robert Abela 13 January 2020 1 year, 22 days
 South Korea Presidential republic Chung Sye-kyun 14 January 2020 1 year, 21 days
 Russia Semi-presidential republic Mikhail Mishustin 16 January 2020 1 year, 19 days
 Qatar Constitutional monarchy Khalid bin Khalifa bin Abdul Aziz Al Thani 28 January 2020 1 year, 7 days
 Guinea-Bissau Parliamentary republic Nuno Gomes Nabiam 28 February 2020 342 days
 Malaysia Constitutional monarchy Muhyiddin Yassin 1 March 2020 340 days
 Ukraine Semi-presidential republic Denys Shmyhal 4 March 2020 337 days
 Haiti Semi-presidential republic Joseph Jouthe 4 March 2020 337 days
 Slovenia Parliamentary republic Janez Janša 13 March 2020 328 days
 Slovakia Parliamentary republic Igor Matovič 22 March 2020 320 days
 Vanuatu Parliamentary republic Bob Loughman 20 April 2020 290 days
 Iraq Parliamentary republic Mustafa Al-Kadhimi 6 May 2020 274 days
 Lesotho Constitutional monarchy Moeketsi Majoro 20 May 2020 260 days
 Belarus Presidential republic Roman Golovchenko 4 June 2020 245 days
 Syria Semi-presidential republic Hussein Arnous 11 June 2020 238 days
 France Semi-presidential republic Jean Castex 3 July 2020 216 days
 Gabon Parliamentary republic Rose Christiane Raponda 16 July 2020 203 days
 Guyana Parliamentary republic Mark Phillips 2 August 2020 186 days
 Mauritania Semi-presidential republic Mohamed Ould Bilal 6 August 2020 182 days
 Japan Constitutional monarchy Yoshihide Suga 16 September 2020 141 days
 Somalia Parliamentary republic Mohamed Hussein Roble 23 September 2020 134 days
 Mali Semi-presidential republic Moctar Ouane
(acting)		 27 September 2020 130 days
 Togo Parliamentary republic Victoire Tomegah Dogbé 28 September 2020 129 days
 Belgium Constitutional monarchy Alexander De Croo 1 October 2020 126 days
 Kyrgyzstan Parliamentary republic Sadyr Japarov 10 October 2020 117 days
 Jordan Constitutional monarchy Bisher Khasawneh 12 October 2020 115 days
 Bahrain Constitutional monarchy Salman bin Hamad Al Khalifa 11 November 2020 85 days
 Belize Parliamentary republic Johnny Briceño 12 November 2020 84 days
 Peru Presidential republic Violeta Bermúdez 18 November 2020 78 days
 Lithuania Semi-presidential republic Ingrida Šimonytė 24 November 2020 72 days
 Montenegro Parliamentary republic Zdravko Krivokapić 4 December 2020 62 days
 Eswatini Absolute monarchy Themba N. Masuku
(acting)		 13 December 2020 53 days
 Romania Semi-presidential republic Florin Cîțu 23 December 2020 43 days

References
  1. "Denmark's youngest prime minister to lead new government". Deutsche Welle. 25 June 2019. Retrieved 27 June 2019.

See also
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