Fernando Pacheco Jimenez (December 8, 1927 – November 16, 2017) known publicly as Ferdie Pacheco, was the personal physician and cornerman for world heavyweight boxing champion Muhammad Ali as well as numerous other boxing champions. Pacheco was also a long-time boxing television commentator, and the first Spanish interpreter for English speaking boxing broadcasts in the United States.

Known in popular culture as The Fight Doctor, Pacheco left Ali's team in the fall of 1977 after Ali didn't perform as expected in a battery of physical reflex tests, leading Ali to reject Pacheco's medical advice to retire.

For the next two decades, Pacheco was a noted boxing analyst for several television networks, including NBC and Showtime. He also became an author and self-taught painter, with most of his works focused on his career in boxing and his youth in the Ybor City neighborhood of Tampa, Florida.