1955 in South Vietnam

← 1954 1953 1952 1955 in South Vietnam → 1956 1957 1958
Decades:	1950s 1960s 1970s
See also:	Other events of 1955 Timeline of Vietnamese history

The following lists events that happened during 1955 in South Vietnam.

• February 12 - United States President Dwight D. Eisenhower sends the first U.S. advisors to South Vietnam.

• October 26 - Ngô Đình Diệm proclaims Vietnam to be a republic with himself as its President (following the State of Vietnam referendum on October 23) and forms the Army of the Republic of Vietnam.

• November 1 - The Vietnam War begins between the South Vietnam Army and the North Vietnam Army in which the latter is allied with the Viet Cong.