Christiaan Robbert Steven Soumokil (13 October 1905 – 12 April 1966) was a South Moluccan politician and prosecutor who served as the second president of the Republic of South Maluku from 1950 until his execution in 1966 by Indonesian forces loyal to Suharto.

[1] His father was Moluccan and his mother was an Indo (mixed Dutch and indigenous Indonesian descent).

[1] Between May 1947 and February 1950, he served as Minister of Justice in four cabinets of the State of East Indonesia.

[2] In April 1950, Soumokil, Johanis Manuhutu, and Albert Wairisal signed a declaration proclaiming the independence of the South Moluccas from the United States of Indonesia and the founding of an independent Republic of South Maluku.

Soumokil was executed by firing squad on 12 April 1966, on Pulau Ubi Basar by forces loyal to Suharto.