| 9th Infantry Division | |
|---|---|
| Sư đoàn 9 | |
&sq=&lang=&file=File:ARVN_9th_Infantry_Division_SSI.svg) 9th Division SSI | |
| Active | 1961-1975 |
| Country |  South Vietnam |
| Branch |  ARVN |
| Type | Division |
| Part of | IV Corps |
| Garrison/HQ | Cần Thơ, Sa Dec |
| Engagements | Vietnam War |
| Commanders | |
| Notable commanders | Lam Quang Thi Tran Ba Di Huynh Van Lac |
| Insignia | |
| Division flag[1][2] | &sq=&lang=&file=File:Flag_of_the_ARVN_9th_Infantry_Division.svg) |
The 9th Infantry Division (Vietnamese: Sư đoàn 9; Chữ Hán: 師團9) of the Army of the Republic of Vietnam (ARVN)—the army of the nation state of South Vietnam that existed from 1961 to 1975—was part of the IV Corps that oversaw the southernmost region of South Vietnam, the Mekong Delta. The 9th Infantry Division was based in Sa Dec 1962 - 1972 and Vinh Long 1972 - 1975 throughout the war.