Theo is a distinctive girls' name in United States, ranking #5894 in 2025 with 21 recorded births. The name reached its all-time peak in 2021 with 64 births ranking #2708. In 2025, approximately 1 in every 76,537 girls born was named Theo. FALLING Recent data shows the name is currently falling.
Theo is a warm, stylish short form usually tied to Theodore and the meaning gift of God. It manages to feel classic and modern at the same time.
Once mostly a nickname, Theo has become a major stand-alone favourite in its own right. Its success comes from its softness, simplicity, and strong classical background.