Teddi is a girls' spelling of Teddy, the classic nickname for Theodora and Theodore, and so carries the Greek meaning "gift of God". Like Billie, Frankie and Stevie it belongs to the wave of boyish nicknames that American parents now give girls as full names. Teddi was almost unused ten years ago, at number 10796 in 2015, then climbed quickly and reaches its best rank yet, number 2433, in 2025 with 74 girls.