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The Military ranks of South Sudan are the military insignia used by the South Sudan People's Defence Forces.

The rank insignia of commissioned officers.

Rank group	General / flag officers										Senior officers						Junior officers
South Sudan Army v t e
	Field marshal		General		Lieutenant general		Major general		Brigadier		Colonel		Lieutenant colonel		Major		Captain		First lieutenant			Second lieutenant
South Sudan Air Force v t e
	Air marshal		General		Lieutenant general		Major general		Brigadier general		Colonel		Lieutenant colonel		Major		Captain		First lieutenant			Second lieutenant
Rank group	General / flag officers										Senior officers						Junior officers

The rank insignia of non-commissioned officers and enlisted personnel.

Rank group	Senior NCOs																						Junior NCOs						Enlisted
South Sudan Army v t e
	Regimental sergeant major						Sergeant major				Sergeant												Corporal				Lance corporal		Private
South Sudan Air Force v t e
	Regimental sergeant major						Sergeant major				Sergeant												Corporal				Lance corporal		Private
Rank group	Senior NCOs																						Junior NCOs						Enlisted

• Uniforminsignia.org (Sudan People´s Liberation Army)
• "The Sudan People's Liberation Army Act" (PDF). ilo.org. Government of Southern Sudan. 2009. p. 16. Retrieved 23 February 2023.