Namesakes
Fictional Characters from Television:
1 character, 1 villain
Harley Quinn 1992 Batman: The Animated Series 
Harley Keiner 1993; 2014 Boy Meets World; Girl Meets World
Notable Actors and Entertainers:
1 actor
Harley Jane Kozak 1957-
Notable Businesspeople:
1 businessperson
William S. Harley 1880-1943