Kuiper

Kuiper is the Dutch form of Cooper ("barrel maker"), but it may be more prominently associated with the Kuiper Belt, a band of small space rocks near Neptune where many comets are believed to come from. As a surname, it was notably borne by astronomer Gerard Kuiper, while as a first name, it made its debut to the US stats in 2025.

It might appeal to those who love Piper and Kaia, who enjoy last-names-as-first-names, and who want a space-related name.

Pronounced KY-pur.