Rufus Wayne Youngblood, Jr. (January 13, 1924 – October 2, 1996) was a United States Secret Service agent best known for using his body to shield Vice President Lyndon B. Johnson during the assassination of John F. Kennedy in Dallas, Texas on November 22, 1963.

He was left with his mother, whose permission he asked before enlisting in the United States Army Air Corps during World War II.

In his 1973 book Twenty Years in the Secret Service: My Life with Five Presidents, Youngblood said that he had not known whether the sound he heard was a gunshot, a bomb, or a firecracker.

[7] In October 1966 Youngblood was figured prominently in photographs and stories in Australian newspapers when two young men, John and David Langley, threw bags of red and green paint at the presidential limousine as it drove through the streets of Melbourne.

The paint was the colours of the National Liberation Front ('Viet Cong') flag, and the brothers threw it at Johnson in protest against his administration's actions in Vietnam.