What does Theo mean?
Theo \the()-theo\ as a name for girls (also used more widely as boys' name Theo). Theo's name origin is Greek, and the meaning of Theo is "God's gift". Theo is a variant of Theodora (Greek): feminine of Theodore.
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 (#92217 out of 150436, Top 61%). (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 the years 1910-1919 (usage of 0.4016%) and are now much less widespread, with the versions Dora, Theda, Theo, Theodora and Theodosia becoming somewhat dated. (2014 Birth Statistics)