The Army of the Republic of Vietnam Special Forces (Vietnamese: Lực Lượng Đặc Biệt Quân Lực Việt Nam Cộng Hòa or LLDB) were the elite military units of the Army of the Republic of Vietnam (commonly known as South Vietnam).
Pasukan Pertahanan Khusus Republik Vietnam (bahasa Vietnam: Lực Lượng Đặc Biệt Quân Lực Việt Nam Cộng Hòa atau LLDB) merupakan unit militer elit dari Pasukan Republik Vietnam (biasa disebut sebagai Vietnam Selatan).