Charley Delaney was a male Human of 20th century Earth. He was a professional athlete who participated in boxing contests.

In 1930, he fought Winky Gaines in Bay Land Garden in San Francisco. Delaney was the favorite. (DS9: "Past Tense, Part II")

This character was only mentioned in writing.
Charley Delaney replaced Charley Mulaney on the boxing poster, which first appeared in "The City on the Edge of Forever".