Namesakes
Biblical Characters:
1 character
Joanna (f) Luke 8:3 
Fictional Characters from Song Titles:
3 characters
(character) Joanna 1968 Joanna
(character) Joanna 1983 Joanna
(character) Joanna 2005 Joanna
Notable Actors and Entertainers:
11 actors
Jenny Arean (a.k.a. Joanna) 1942-
Joanna Pettet 1942-
Joanna Cassidy 1944-
Joanna Lumley 1946-
Joanna David 1947-
Joanna Kerns 1953-
Joanna Johnson 1961-
Pooky Quesnel (a.k.a. Joanna) 1964-
JoAnna Garcia Swisher 1979-
Willa Holland (middle name Joanna) 1991-
Joanna Vanderham 1991-
Notable Musicians:
1 musician, 1 singer
Bobbejaan Schoepen (middle name Joanna) 1925-2010
Jenny Arean (a.k.a. Joanna) 1942-
Olympic Medalists:
3 gold, 1 bronze
(bronze) Joanna Nowicka 1996 archery - team
(gold) Joanna Hayes 2004 100 m hurdles
(gold) Jo Aleh 2012 sailing
(gold) Joanna Rowsell 2012 cycling - track
Spanish Kings and Queens:
1 queen
Queen Juana the Mad (a.k.a. Joanna) 1504-1555