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
	Field marshal		General		Lieutenant general		Major general		Brigadier		Colonel		Lieutenant colonel		Major		Captain		First lieutenant			Second lieutenant
South Sudan Air Force
	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
	Regimental sergeant major						Sergeant major				Sergeant												Corporal				Lance corporal		Private
South Sudan Air Force
	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.