Koby is a moderately popular boys' name in England & Wales, ranking #448 in 2024 with 90 recorded births. The name reached its all-time peak in 2021 with 119 births ranking #375. In 2024, approximately 1 in every 3,087 boys born was named Koby. RISING Recent data shows the name is currently rising.
Koby is a modern English spelling variant of Coby. Through that route it belongs to the Jacob family, which is traditionally associated with the meaning "supplanter".
Behind the Name treats Koby directly as a variant of Coby, which makes its broader lineage clearer than some neighbouring spellings. The name’s modern feel comes from the spelling, not from a newly invented root.