Percilia

Also appearing as Percília, this distinctive choice appeared in the Brazilian charts in the 1930s and 1940s. While it may look like a relative of Percival or Priscilla, it does ultimately come from an Ancient Greek word meaning "perch" or "dark-spotted". Used as the name of a genus of ray-finned fish that are native to Chile, it could feel a bit too fishy for some, but for others, it could be a name with a cool nature connection and a rarer alternative to Cecilia, Philippa, and Perla.

Pronounced per-SIL-ee-uh.