Five Letter Boy Names

This common Swedish name gains science connections from bearer Manne Siegbahn who won the Nobel prize for his work on X-ray spectroscopy.

Croatian form of Paul

A seldom-used Game of Thrones name, perhaps because its main originator, Tywin Lannister, is as ruthless as any character in the show. Yet the "ty-" beginning is so ubiquitous and popular that Tywin may have some potential... the fact that it's less well-known than Tyrion probably works in its favor.

Basque form of John