Namesakes
Eurovision Song Contest Winners:
1 winner
Johnny Logan 1980; 1987 Ireland 
Fictional Characters from Song Titles:
1 character
(character) Brad Logan 1998 Brad Logan
Fictional Characters from Television:
13 characters
Beth Logan 1987 The Bold and the Beautiful
Brooke Logan 1987 The Bold and the Beautiful
Donna Logan 1987 The Bold and the Beautiful
Katie Logan 1987 The Bold and the Beautiful
Stephen Logan 1987 The Bold and the Beautiful
Storm Logan 1987 The Bold and the Beautiful
Marcia Brady (a.k.a. Logan) 1969; 1990 The Brady Bunch; The Bradys
Mike Logan 1990 Law & Order
Matt Logan 1994 Heartbreak High
Bruce Logan 2000 The District
Charles Logan 2001 24
Martha Logan 2001 24
Rebecca Logan 2007 Greek
Notable Actors and Entertainers:
1 actor
Phyllis Logan 1956-
Notable Musicians:
1 singer
Johnny Logan 1954-
Olympic Medalists:
1 gold, 1 silver
(gold) Elle Logan 2008; 2012 rowing
(silver) Devin Logan 2014 freestyle skiing