What does Theo mean?
Theo \the()-theo\ as a boys' name (also used less regularly as girls' name Theo) is of Old German and Greek origin, and Theo means "brave people; God's gift". Theo is a derivative of Theobald (Old German). Theo is also a derivative of Theodore (Greek): from Theodorus.
Theo has 31 related forms via Theobald, Theodore: Dietbald, Dietbold, Fedor, Feodor, Fyodor, Teador, Ted▼, Teddie, Teddy▼, Tedor, Teobaldo, Teodoor, Teodor, Teodoro▼, Thebault, Theodon, Theodor, Theodorus, Theodosios, Theodosius, Thibaud, Thibault, Thibaut, Tibold, Tiebold, Tiebout, Todor, Tudor, Tybald, Tybalt and Tybault.
Theo is a somewhat prominent first name for men (#1023 out of 1220, Top 84%) and also a somewhat prominent surname for both adults and children (#92217 out of 150436, Top 61%). (2000 U.S. Census)
Presented below is the baby name popularity of Theo for boys. Theo reached its apex rank of #449 in the U.S. during the years 1900-1909, and is at #509 currently. (2014 Birth Statistics)
Ted, Teddy, Teodoro, Theodor and Theodore (#126 last year) are the prominent alternative forms of Theo (#509 last year) listed in the Top 1000. Usage of these boy names was at its most widespread during the years 1930-1939 (usage of 0.4782%) and has become much lower since (usage 0.2275%, down 52.4%), with the forms Ted, Teddy and Teodoro becoming less trendy. Theo (#509) is the most trendy birth name among these, with this name going through a revival in popularity. Below is a graphed comparison of the popularity of Theo and corresponding names. (2014 Birth Statistics)