This article lists the heads of state of the United States of Indonesia, a short-lived federal state which existed from 17 December 1949 to 17 August 1950. The heads of state held different titles depending upon their constituent state. Each constituent state had the same head of state throughout the short existence of the federation.
This list does not include autonomous and unrecognized regions.
Abdullah, Taufik; Mulyani, Nani; Djumadiono, Didik; Salman, Budi (1995), 50 Tahun Indonesia Merdeka:1945-1965 (in Indonesian), Jakarta: Citra Media Persada
Feith, Herbert (2007) [1962]. The Decline of Constitutional Democracy in Indonesia. Singapore: Equininox Publishing (Asia) Pte Ltd. ISBN978-979-3780-45-0.
Helius, Sjamsuddin; Ekadjati, Edi S.; Marlina, Kuswiah; Wiwi, Ietje (1992), Menuju Negara Kesatuan: Negara Pasundan(PDF), Jakarta: Ministry of Education and Culture
Ide Anak Agung Gde Agung (1996) [1995]. From the Formation of the State of East Indonesia Towards the Establishment of the United States of Indonesia. Translated by Owens, Linda. Yayasan Obor. ISBN979-461-216-2.
Government of East Sumatra (1948), Pemandangan ringkas ekonomi dan tata Negara Soematera Timoer, Medan: Druk Varekamp
Kahin, George McTurnan (1952), Nationalism and Revolution in Indonesia, Ithaca, New York: Cornell University Press
1948 selajang pandang: setahun perdjuangan kearah pembangunan, keamanan, ketenteraman dan kesedjahteraan Indonesia (in Indonesian), Jakarta: Regeringsvoorlichtingsdienst, 1949
^The United States of Indonesia was officially established on 27 December 1949.
^Date of the dissolution of the United States of Indonesia. Sukarno would concurrently serve as the President of the Republic of Indonesia after Assaat resigned in 15 August 1950.
^Date of the dissolution of the State of East Indonesia.
^Resignantion offered 30 January 1948, effective 10 February
^Date of the dissolution of the State of East Sumatra.