Teddi registers 63 times at rank 1637 on female pets. It's a variant spelling of Teddy, already a warm pet name in its own right, with an "i" ending that softens it further and pushes it clearly into female territory. The choice between Teddi and Teddy is a small but deliberate signal about how the owner reads the name.
The Feminine Diminutive Strategy
The "i" ending does specific work in pet naming: it feminizes, softens, and signals that the owner made a deliberate choice. Teddi belongs with Calli and Christi in a subset of names where alternate spelling carries its own meaning. It's also a Real Housewives-adjacent name, as Teddi Mellencamp Arroyave appeared on RHOBH, which gives it a recent pop-culture footprint in reality TV circles.
Sound and Breed Fit
TED-ee is two syllables, warm and bouncy. It calls easily and has a natural affection built into the diminutive form. Female dogs with plush coats carry it perfectly: Bichon Frisés, Pomeranians, and teddy-bear-cut Doodles. The human-name context is at /names/teddi.
The Counter-Reading
Teddi is unambiguously sweet, which is exactly what most owners who choose it are going for. For owners with a fluffy female dog they immediately called a teddy bear, Teddi is the honest answer to the naming question.