The high commissioner of the Trust Territory of the Pacific Islands was an official who administered the Trust Territory of the Pacific Islands (TTPI), a United Nations trusteeship in the Pacific Ocean under the administration of the United States, between 1947 and 1994. The territory consisted of islands captured by America during World War II, prior to which they had been part of the Empire of Japan as the South Seas Mandate, within the Japanese colonial empire. After World War II, United Nations Security Council Resolution 21 placed the territory under the United States trusteeship as the Trust Territory of the Pacific Islands. The islands are now part of Palau, Northern Mariana Islands, Federated States of Micronesia, and Marshall Islands.

The following is a list of the high commissioner of the Trust Territory of the Pacific Islands, as well as their predecessors during the American occupation of the territory between 1944 and 1947.

(Dates in italics indicate de facto continuation of office)

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No.	Portrait	Name (Birth–Death)	Term of office
			Took office	Left office	Time in office
United States Navy control
Military Governor
1		John H. Hoover (1887–1970)	March 1944	19 June 1944	3 months
Military Governor and CINCPACFLT
2		Chester W. Nimitz (1885–1966)	19 June 1944	24 November 1945	1 year, 158 days
3		Raymond A. Spruance (1885–1969)	24 November 1945	3 February 1946	71 days
4		John H. Towers (1885–1955)	3 February 1946	28 February 1947	1 year, 25 days
5		Louis E. Denfeld (1891–1972)	28 February 1947	18 July 1947	140 days
Trust Territory of the Pacific Islands
High Commissioner and CINCPACFLT
1[lower-alpha 1]		Louis E. Denfeld (1891–1972)	18 July 1947	17 April 1948	274 days
2		DeWitt Clinton Ramsey (1888–1961)	17 April 1948	1 May 1949	1 year, 14 days
3		Arthur W. Radford (1896–1973)	1 May 1949	6 January 1951	1 year, 250 days
High Commissioner
4		Elbert D. Thomas (1883–1953)	6 January 1951	11 February 1953 †	2 years, 36 days
5		Frank E. Midkiff (1887–1983)	13 March 1953	1 September 1954	1 year, 172 days
–		Delmas H. Nucker (1907–1985)	1 September 1954	November 1956	6 years, 242 days
6			November 1956	1 May 1961
7		Maurice W. Goding (1911–1989)	1 May 1961	27 May 1966	5 years, 26 days
–		William R. Norwood (1909–1981)	27 May 1966	1 August 1966	2 years, 339 days
8			1 August 1966	1 May 1969
9		Edward E. Johnston (1918–2011)	1 May 1969	1 July 1976	7 years, 61 days
–		Peter Tali Coleman (1919–1997)	1 July 1976	February 1977	7 months
–		James Boyd Mackenzie (1918–1978)	February 1977	9 July 1977	5 months
10		Adrian P. Winkel (1915–1994)	9 July 1977	1981	3–4 years
–		Daniel Joseph High (born 1938)	1981	December 1981	0 years
11		Janet J. McCoy (1916–1995)	December 1981	10 July 1987	5 years, 7 months
Director of the Office of Transition
12		Charles D. Jordan	3 November 1986	30 September 1991	4 years, 331 days

Close

• Palau continued to be administered by the Office of Territorial and International Affairs (presently the Office of Insular Affairs), a unit of the United States Department of the Interior until May 25, 1994.

• Governor of the South Seas Mandate
• Congress of the Trust Territory of the Pacific Islands

• World Statesmen – Micronesia (Trust Territory of the Pacific Islands)