What does Theo mean?
Theo is a somewhat prominent first name for women (#2597 out of 4276, Top 61%) and also a somewhat prominent last name for both adults and children (#67179 out of 88799, Top 76%). (2000 U.S. Census)
Shown below is the baby name popularity of Theo for girls. Theo reached its top position of #602 in the U.S. then, but is not listed currently. (2014 Birth Statistics)
Below is a graphed analysis of the popularity of Theo and related names. Popular variation forms of Theo appearing in the Top 1000 are Theodosia, Theodora, Theda and Dora. These girl names were at the height of their popularity during 1910-1919 and are now much less widespread, with the versions Theodosia, Theodora, Theo, Theda and Dora becoming somewhat dated. (2014 Birth Statistics)