Namesakes
Fictional Characters from Television:
4 characters
Danny "Mac" McGregor (a.k.a. Mac) 2000 The District 
Cindy "Mac" Mackenzie (a.k.a. Mac) 2004 Veronica Mars
Mac Taylor 2004 CSI: NY
Ronald "Mac" McDonald (a.k.a. Mac) 2005 It's Always Sunny in Philadelphia
Hall-of-Famers:
1 football
(football) Mac Speedie 2020
Notable Musicians:
1 musician, 1 singer
Mac DeMarco 1990-
Mac Miller 1992-2018
Olympic Medalists:
1 gold/silver
(gold/silver) Mac Wilkins 1976; 1984 discus throw