Flag of South Vietnam

State of Vietnam
Republic of Vietnam
"Heritage and Freedom Flag" (Lá cờ Tự do và Di sản)
"Yellow Flag with Three Red Stripes" (Cờ vàng ba sọc đỏ)
UseCivil and state flag
Proportion2:3
Adopted2 June 1948 (Provisional Central Government of Vietnam)
1949 (State of Vietnam)
1955 (Republic of Vietnam)
Relinquished30 April 1975
DesignA yellow flag with three horizontal red stripes.
Designed byvarious claims
Flag of the RVNMF
UseWar flag
DesignA yellow flag with three red stripes, and the emblem of RVNMF (red eagle) in the middle.
Designed byDesign is a variant of the flag of South Vietnam.

The flag of South Vietnam was first introduced on 2 June 1948 as the official symbol of the French-associated Provisional Central Government of Vietnam, later served as the national flag of the State of Vietnam and the Republic of Vietnam (commonly known as South Vietnam) from 1949 to 30 April 1975. The design consists of a yellow background with three red horizontal stripes through the middle, representing northern, central, and southern Vietnam. It is used to represent the "Vietnamese Heritage and Freedom Flag" by Overseas Vietnamese.

Although South Vietnam (Republic of Vietnam) ceased to exist in 1975, the flag is still represented among private citizens in other countries by some Vietnamese emigrés, particularly in American, Canadian, and Australian communities of refugee-descent as a major anti-communist symbol. Since June 2002, several American governmental bodies adopted resolutions recognizing the former flag as "Vietnamese Heritage and Freedom Flag."