South Vietnamese military ranks and insignia was used by theRepublic of Vietnam Military Forces, specifically theArmy,Navy,Marines andAir Force. Originally based onFrench ranks, the ranks were changed in 1967 to resembleUS ranks more closely.
The rank insignia ofcommissioned officers.
| Rank group | Student officer | |
|---|---|---|
 Army of the Republic of Vietnam(1955-1963)[1] | .svg) |  |
| Army of the Republic of Vietnam (1964-1975)[2] | .svg) |  |
 Republic of Vietnam Navy(1955-1963)[1] | .svg) |  |
| Republic of Vietnam Navy (1964-1975)[2] | .svg) |  |
 Republic of Vietnam Marine Division(1955-1975) | .svg) |  |
 Republic of Vietnam Air Force(1955-1963)[1] | .svg) |  |
| Republic of Vietnam Air Force (1964-1975)[2] | .svg) |  |
| Name | Chuẩn úy | Sinh viên sĩ quan |
The rank insignia ofnon-commissioned officers andenlisted personnel.
