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.
| State | Name | Title | Term of office | Duration | |||
|---|---|---|---|---|---|---|---|
| President | 17 December 1949 | 17 August 1950 | |||||
| Acting President | 27 December 1949 | 15 August 1950 | |||||
| President | 24 December 1946 | 17 August 1950 | |||||
| Wali Negara | 24 April 1948 | 10 February 1950 | |||||
| Tengku Mansur | Wali Negara | 29 January 1948 | 17 August 1950 | ||||
| Abdul Malik | Wali Negara | 28 December 1948 | 18 March 1950 | ||||
| Achmad Kusumonegoro | Wali Negara | 1 December 1948 | 9 March 1950 | ||||
| Tjakraningrat XII | Wali Negara | 20 February 1948 | 1 February 1950[1] | ||||