List of prime minsiters of Kertosono

The following is a list of prime ministers of Kertosono since the formation of such office in 1901 as a result of the formation of Kertosono. While the then independent entities of Kertosono each had their own prime ministers and other head of governments which continue on after joining the empire of Kertosono, they are not the direct predecessors of the office of prime minister, as they do not act on behalf of the entire country.

The prime minister of Kertosono, natively called the mahamantri, leads the cabinet of Kertosono, accountable to the lower house of parliament. While the monarch of Kertosono has full power over the selection of prime ministers, the leader of the largest party or coalition is almost always chosen by convention. The current prime minister is Sulistyono Raharjo, who has held the office since 1994 and is currently the longest-serving prime minister of Kertosono.

List of prime ministers

No.	Portrait	Name (lifespan)	Term in Office	Political Party	Election	Cabinet	Monarch (reign)
1		R.M.T Irodikromo (1846-1915)	15 May 1901 - 13 October 1907 (6 years, 151 days)	Independent	-	Irodikromo I Irodikromo II Irodikromo-Sudibyo	Indrawarman IV (1901-1910)
2		K.R.T Mangusuweno R. (1842-1925)	14 October 1907 - 11 April 1908 (180 days)			Mangusuweno
3		R.M.Pj. Sudibyo Wongsonegoro (1854-1927)	12 April 1908 - 14 April 1916 (8 years, 2 days)	People's Movement Party	1908, 1912	Wongsonegoro I Wongsonegoro II
							Jayawarman II (1910-1913)
							Jayawarman III (1913-1936)
4		K.R.M.T Kusno Warsowilopo (1855-1930)	15 April 1916 - 10 April 1920 (3 years, 361 days)	Progressive People's Alliance	1916	Warsowilopo
5		R.M. Juwono Sastrodigdoyo (1867-1923)	11 April 1920 - 16 February 1923 (2 years, 311 days)	Grassroots People's Party	1920	Sastrodigdoyo
6		K.R.T Sudirman Suroto (1865-1941)	17 February 1923 - 13 April 1924 (1 year, 56 days)		-	Suroto - Kusiran
7		B.R.M.Pj Suryotomo (1868-1947)	14 April 1924 - 13 April 1936 (11 years, 365 days)	People's Movement Party	1924, 1928, 1932	Suryotomo I Suryotomo II Suryotomo III
							Adityawarman II (1936-1968)
8		K.H. Munjidatun (1884-1956)	14 April 1936 - 11 May 1943 (7 years, 27 days)	Revival of the Ulema	1936, 1940	Munjidatun I Munjidatun II
Vacant (11 May 1943 - 20 June 1943)
9		M. Suparto (1892-1985)	21 June 1943 - 23 June 1947 (4 years, 2 days)	United Kertosono Party	1943	Suparto
10		P.M. Herjuno Sastroharyono (1895-1964)	24 June 1947 - 3 March 1948 (253 days)		1947	Sastroharyono
11		R.M.T Rendro Condrolukito (1893-1971)	4 March 1948 - 21 May 1950 (2 years, 79 days)		-	Condrolukito
12		Mulyono (1887-1958)	22 May 1950 - 23 June 1951 (1 year, 32 days)		-	Mulyono
13		R.M. Inggil Srandakan (1896-1975)	24 June 1951 - 24 June 1955 (4 years, 1 day)	Kertosono Farmer's Union	1951	Srandakan
14		R. Murtiyono Jalasanewu (1894-1982)	25 June 1955 - 1 April 1957 (1 year, 280 days)	People's Party of Kertosono	1955	Jalasanewu
15		R.M.Pj. Kresno Purwosukoco (1898-1978)	2 April 1957 - 6 August 1957 (126 days)		-	Purwosukoco
16		R.M. Susilo Kironobroto (1897-1959)	6 August 1957 - 11 December 1957 (127 days)			Kironobroto
17		K.T. Prabowo (1902-1980)	12 December 1957 - 20 June 1958 (190 days)			Prabowo
18		K.Hj. Sri Lestariwati Wiropranoto (1914-2001)	21 June 1958 - 23 June 1962 (4 years, 2 days)	United Kertosono Party	1958	Wiropranoto
19		M. Nartosabdo Kromodiwiryo (1905-1965)	24 June 1962 - 12 September 1965 (3 years, 110 days)		1962	Working
20		R.Pj. Arioguno Waspodisastro (1903-1972)	13 September 1965 - 22 June 1966 (252 days)		-	Waspodisastro
21		Parto (1906-1984)	23 June 1966 - 22 June 1970 (3 years, 364 days)		1966	Parto
							Mulawarman VI (1968-1975)
22		Saipudin (1912-1986)	23 June 1970 - 30 May 1972 (1 year, 342 days)		1970	Saipudin
23		R.M.T. Suryopranoto (1917-1977)	31 May 1972 - 16 June 1976 (4 years, 16 days)	Kertosono Islamic Union	1972	Suryopranoto
							Purnawarman V (1975-2015)
24		Gen (Ret.) R.M. Satrio Harjosupadmo (1905-1986)	17 June 1976 - 13 August 1985 (9 years, 57 days)	Kertic People's Party	1976, 1980	Harjosupadmo I Harjosupadmo II
25		M. Suryopranoto (1923-1997)	14 August 1985 - 21 June 1986 (311 days)		-	Suryopranoto
26		Gumiwang Kartosuwiryo (1936-1990)	22 June 1986 - 11 January 1990 (3 years, 203 days)	United Kertosono Party	1986	Kartosuwiryo
27		Adi Kartono Wiyogomartono (1941-)	11 January 1990 - 18 October 1993 (3 years, 280 days)		1990	Wiyogomartono I Wiyogomartono II
27		R.M. Samigaluh Proyononggo (1946-)	19 October 1993 - 11 August 1994 (296 days)		-	Proyononggo
28		R. Sulistyono Raharjo (1951-)	12 August 1994 - Present (30 years, 134 days)	Kertic People's Party	1994, 1998, 2002 2006, 2010, 2014 2018, 2022	Raharjo I Raharjo II Raharjo III Raharjo IV Raharjo V Raharjo VI Raharjo VII Raharjo VIII
							Mulawarman VII (2015-2021)
							Adityawarman III (2021-)