Jo \jo\ as a girl's name (also used as boy's name Jo), is pronounced joh. It is of American origin. An independent name and short form of names like Joanna, Joanne, Jody and Josephine. Also sometimes used as a prefix Jo- in blends and compound names. Literary: Jo was the nickname of the second daughter in Louisa May Alcott's "Little Women". See also Ja- and Je-.
Jo has 29 variant forms: Jobelle, Jobeth, Jodean, Jodelle, Joetta, Joette, Jolana, Joleesa, Jolene, Jolinda, Jolisa, Jolise, Jolissa, Jolyn, Jolynn, Jo-Marie, Jonell, Jonelle, Jonessa, Jonetia, Joniece, Jonique, Jonisa, Joquise, Jorene, Josanna, Josanne, Jovelle and Jozette.
For more information, see also the related name Joelle.