Nathaniel Fitch Sr. (born October 31, 1956) is an American former heavyweight boxer best known for his stellar amateur boxing career.

"Years ago I was at a Boys Club and some guys took my bike and my brothers went to retrieve it and I'll just say I was impressed with the way they did it," said Fitch.

"[1] In 1977, Fitch enlisted in the U.S. Army where he began his career as an amateur boxer.

[1] He finished his amateur career with a record of 187 wins, 16 losses and 1 draw.

His resume included losses to notable heavyweights Lou Savarese, Tim Witherspoon, Bruce Seldon, Jeremy Williams, Chris Byrd, and John Ruiz.