The name Beretta is a girl's name of Italian origin. Beretta and is often added to lists like Badass Baby Names and discussed in our forums with posts like "The Makeover Baby Name Game".
From the experts:
A Beretta is a gun, so named because of the Italian firearms manufacturer that makes it. And now Beretta is also a badass baby name, used in the middle for daughter Breeze by Bristol Palin baby daddy Levi Johnston. What a Tripp.