Namesakes
Eurovision Song Contest Winners:
1 winner
Charlotte Perrelli (a.k.a. Jenny) 1999 Sweden 
Fictional Characters from Books:
2 characters
Jenny Humphrey 2002 Gossip Girl
Jenny Kurtz 2007 Thirteen Reasons Why
Fictional Characters from Song Titles:
6 characters
(character) Jenny 1964 Pirate Jenny
(character) Jenny 1982 Jenny (867-5309)
(character) Jenny 2004 Jenny Was A Friend Of Mine
(character) Jenny Wren 2005 Jenny Wren
(character) Jenny 2006 Jenny Don't Be Hasty
(character) Jenny 2007 Jenny
Fictional Characters from Television:
6 characters
Jenny Calendar 1997 Buffy the Vampire Slayer
Jenny Shaw 1997 Ally McBeal
Jenny Gordon 1998 Charmed
Dana Walsh (a.k.a. Jenny) 2001 24
Jenny Shepard 2003 NCIS
Jenny Humphrey 2007 Gossip Girl
Hurricanes and Tropical Storms:
1 hurricane, 1 storm
Hurricane Jenny 1961
Storm Jenny 1969
New Zealand Prime Ministers:
1 prime minister
Jenny Shipley 1997-1999
Notable Actors and Entertainers:
2 actors
Jenny Arean 1942-
Jenny Agutter 1952-
Notable Musicians:
3 singers
Jenny Lind 1820-1887
Jenny Arean 1942-
Charlotte Perrelli (a.k.a. Jenny) 1974-
Olympic Medalists:
3 bronze, 1 bronze/silver, 1 gold, 1 silver/bronze/gold
(bronze) Jenny Maakal 1932 swimming - 400 m freestyle
(gold) Jenny Kemp 1972 swimming - 4x100 m freestyle relay
(bronze) Jenny Gal 1996 judo
(silver/bronze/gold) Jenny Thompson 1992; 1996; 2000; 2004 swimming - 4x100 m medley relay; swimming - 4x200 m freestyle relay; swimming - 100 m freestyle; swimming - 4x100 m freestyle relay
(bronze/silver) Jenny Whittle 1996; 2000 basketball
(bronze) Jenny Jones 2014 snowboarding
Other Royalty:
1 empress consort/queen consort
Auguste Viktoria of Schleswig-Holstein (a.k.a. Jenny) 1888-1918 German Empire; Prussia