James Ajongo Mawut (1 January 1961 – 20 April 2018) was a South Sudanese Chief of Defence Force.
He was appointed on 9 May 2017 and took-over the office on 10 May 2017 after he was sworn in by the President Salva Kiir Mayardit in the presidential palace.
He is an Aweilian in a native land of Barmayen, which indicates that he is from the Luo people.
Current deputy governor of Aweil Uber Mawut is his biological brother.