Robert "Bob" Joe Welborn (May 5, 1928 – August 10, 1997) of Denton was a NASCAR Grand National Series driver.

He drove in 9 events in 1954 for owners Julian Petty, Bob Griffin, and George Hutchens.

Lewis "Possum" Jones relieved Welborn halfway through the race, but NASCAR always credits the driver who started the car.

Welborn won the pole position for the 1959 Daytona 500 by winning his qualifying race.

Welborn amassed 9 total wins in the 1950s and early 1960s driving his car and one owned by Julian Petty.