The following is a list of Governors of Guam (Chamorro: I Maga' låhen Guåhan[4]).

Spanish-American War era

During the Spanish colonial period, Guam was ruled from the Philippines as part of the Spanish East Indies by the Governor-General of the Philippines.

American capture of the territory (1898)

ImageNameTerm startTerm end
Henry Glass, AdmiralJune 12, 1898June 22, 1898
Francisco Martínez PortusachJune 22, 1898December 12, 1898

Political instability (1898–1899)

ImageNameTerm startTerm endNotes
José SistoDecember 12, 1898December 31, 1898overthrew Portusach
Venancio RobertoDecember 31, 1898January 2, 1899overthrew Sisto
José SistoJanuary 2, 1899February 1, 1899put back in power by US Navy
Edward D. TaussigFebruary 1, 1899February 13, 1899re-asserted USN authority, put a local council in place
Don Joaquin Perez y CruzFebruary 13, 1899April 20, 1899local council
William CoeApril 20, 1899May 9, 1899local council
Louis A. KaiserMay 9, 1899August 7, 1899local council

American Naval governors (1899–1941)

#ImageNameTerm startTerm end
1Richard Phillips LearyAugust 7, 1899July 12, 1900
William Edwin Safford
Acting
June 12, 1900July 19, 1900
2Seaton SchroederJuly 12, 1900January 25, 1903
William Swift
Acting
January 25, 1903February 6, 1903
3William Elbridge SewellFebruary 6, 1903May 16, 1904
Frank Herman Schofield
Acting
January 11, 1904January 28, 1904
3Raymond Stone
Acting
January 28, 1904May 16, 1904
4George Leland DyerMay 16, 1904November 2, 1905
5Luke McNameeNovember 2, 1905December 3, 1906
6Templin Morris PottsDecember 3, 1906October 3, 1907
Luke McNamee
Acting
October 3, 1907December 28, 1907
7Edward John DornDecember 28, 1907November 5, 1910
8Frank FreyerNovember 5, 1910January 21, 1911
9George SalisburyJanuary 21, 1911January 30, 1912
10Robert Edward CoontzJanuary 30, 1912September 23, 1913
11Alfred Walton HindsSeptember 23, 1913March 28, 1914
12William John MaxwellMarch 28, 1914April 29, 1916
William P. Cronan
Acting
April 29, 1916May 18, 1916
Edward E. Simpson
Acting
May 18, 1916May 30, 1916
13Roy Campbell SmithMay 30, 1916November 18, 1918
14William GilmerNovember 18, 1918November 22, 1919
William A. HodgmanNovember 22, 1919December 21, 1919
15William GilmerDecember 21, 1919July 7, 1920
16Ivan WettengelJuly 7, 1920February 27, 1921
17James Sutherland SporeFebruary 27, 1921February 7, 1922
Adelbert Althouse
Acting
February 7, 1922December 8, 1922
John P. Miller
Acting
December 8, 1922December 14, 1922
18Adelbert AlthouseDecember 14, 1922August 4, 1923
19Henry Bertram PriceAugust 4, 1923August 26, 1924
20Alfred Winsor BrownAugust 26, 1924August 7, 1926
23Lloyd Stowell ShapleyAugust 7, 1926June 11, 1929
24Willis W. BradleyJune 11, 1929March 15, 1931
25Edmund RootMarch 15, 1931June 21, 1933
26George A. AlexanderJune 21, 1933March 27, 1936
27Benjamin McCandlishMarch 27, 1936February 8, 1938
28James Thomas AlexanderFebruary 8, 1938April 20, 1940
29George McMillinApril 20, 1940December 10, 1941

World War II era

Japanese military governors (1941–1944)

Name
(Birth–Death)
Took officeLeft office
Tomitarō Horii
(1890–1942)
December 10, 1941January 1942
Hayashi HiromuJanuary 1942June 1942
Homura TeiichiJune 1942March 1944
Takeshi Takashina
(1891–1944)
March 1944July 28, 1944
Hideyoshi Obata
(1890–1944)
July 28, 1944August 11, 1944

American military governors (1944–1949)

Name
(Birth–Death)
Took officeLeft office
Roy Stanley Geiger
(1885–1947)
July 21, 1944August 10, 1944
Henry Louis Larsen
(1890–1962)
August 10, 1944May 30, 1946
Charles Alan Pownall
(1887–1975)
May 30, 1946September 27, 1949

Appointed civilian governors (1949–1971)

#Governor
(Birth–Death)
Took officeLeft officeAppointed byActing Governor
1 Carlton Skinner
(1913–2004)
September 17, 1949April 22, 1953Harry S. TrumanRandall Herman
(February 20, 1953 – April 22, 1953)
2 Ford Quint Elvidge
(1892–1980)
April 23, 1953October 2, 1956Dwight D. EisenhowerWilliam T. Corbett
(May 19, 1956 – October 2, 1956)
3 Richard Barrett Lowe
(1902–1972)
October 2, 1956July 9, 1960Marcellus Boss
(November 14, 1959 – August 22, 1960)
4 Joseph Flores
(1900–1981)
July 9, 1960May 20, 1961
5 William Partlow Daniel
(1915–2006)
May 20, 1961March 9, 1963John F. KennedyManuel Flores Leon Guerrero
(January 20, 1963 – March 9, 1963)
6 Manuel F. Leon Guerrero
(1914–1985)
March 9, 1963July 20, 1969
Lyndon B. Johnson
7 Carlos Camacho
(1924–1979)
July 20, 1969January 4, 1971Richard Nixon

Elected governors (1971–present)

  Democratic (3)       Republican (5)

GovernorServedPartyElectedPrevious OfficeLieutenant Governor
1 Carlos Camacho
(1924–1979)
January 4, 1971

January 6, 1975
Republican1970Appointed Governor of Guam Kurt S. Moylan
2 Ricardo Bordallo
(1927–1990)
January 6, 1975

January 1, 1979
Democratic1974Senator of the Guam Legislature Rudolph G. Sablan
3 Paul McDonald Calvo
(1934–)
January 1, 1979

January 3, 1983
Republican1978Senator of the Guam Legislature Joseph F. Ada
4 Ricardo Bordallo
(1927–1990)
January 3, 1983

January 5, 1987
Democratic1982Senator of the Guam Legislature Edward Diego Reyes
5 Joseph F. Ada
(1943–)
January 3, 1987

January 2, 1995
Republican1986
1990
Lieutenant Governor of Guam Frank F. Blas
6 Carl T.C. Gutierrez
(1941–)
January 2, 1995

January 6, 2003
Democratic1994
1998
Senator of the Guam Legislature Madeleine Bordallo
7 Felix P. Camacho
(1957–)
January 6, 2003

January 3, 2011
Republican2002
2006
Senator of the Guam Legislature Kaleo Moylan
 Michael Cruz
8 Eddie J. Baza Calvo
(1961–)
January 3, 2011

Incumbent
Republican2010
2014
Senator of the Guam Legislature Ray Tenorio

Living former governors

As of January 2017, four former governors were alive, the oldest being Paul McDonald Calvo (1979–1983, born 1934). The most recent governor to die was Ricardo Bordallo (1975–1979, 1983–1987), on January 31, 1990.

NameGubernatorial termDate of birth
Paul McDonald Calvo
1979–1983
(1934-07-25) July 25, 1934
Joseph Franklin Ada
1987–1995
(1943-12-03) December 3, 1943
Carl Gutierrez
1995–2003
(1941-10-15) October 15, 1941
Felix Perez Camacho
2003–2011
(1957-10-30) October 30, 1957