15 Letter Boy Names

Florence is historically a unisex name, deriving both from Latin Florentius and Florentia. Although much more commonly feminine in modern times, it appeared in the US Top 1000 for boys until 1914.

In Philip Pullman's His Dark Materials trilogy, Stelmaria is the beautiful name of Lord Asriel's snow leopard daemon. It's a pretty and plausible combo name reminiscent of Marian names like Stellamaris and Maristela.

Isle is a super rare nature name that sounds like an appealing unisex form of Isla.

A quaint and poetic English word meaning "truly", which could easily make the switch to baby name usage, given its similarity to sophisticated vintage names like Verity and Cecily.

This extravagant name of a pre-Socratic Greek philosopher could make for a bold alternative to Alexander.