Theo.

Proper noun

Theodore

1. A male given name from Latin [in turn from Ancient Greek]; the name of a saint, pope, several emperors, etc.
   • It is as well certainly not to call a parcel of idle and ragged young rogues by the titles of Augustus, Orlando, and Theodore: nor does it sound very fitting and heroical to hear a father cry out pompously to his little boy, as we did once, - "You, Sir, there, - Maximilian,- come out of the gutter."1820 February 9, Leigh Hunt, “Names”, in The Indicator, number XVIII
2. A census-designated place in Mobile County, Alabama, United States.

See all 3 meanings of Theodore