The name Flint is a boy's name of English origin meaning "born near outcrop of flint". Flint and is often added to lists like Nature Names for Babies and discussed in our forums with posts like "Themed Families..".
From the experts:
Flint is one of the new macho names on the rise today, part old-school tough guy, part rebel. You won't find a tougher, steelier-sounding name; it's part of a genre on the rise along with cousins Slate, Stone and Steel.
Flint found itself on the popularity list for a few years in 1959-60, but would prove a distinctive choice today.
Flint has superhero overtones--there's one in "Spiderman"--aka Sandman--and Captain Flint was a Marvel comic, and Flint is both a legendary pirate and a parrot in Robert Louis Stevenson's Treasure Island. But on the softer side, there's also inventor Flint Lockwood in Cloudy With a Chance of Meatballs.