Mazzy has the bounce of a nickname without actually being one — it arrives already casual, already warm, with a Z that gives it just enough edge. The double-Z sound puts it in comfortable company with Jazzy and Fizzy, but Mazzy feels a touch more indie, a touch more specific to a certain kind of owner.
The Mazzy Star Connection
The 1990s shoegaze band Mazzy Star, fronted by Hope Sandoval, gives the name an unmistakable generational reference point. "Fade Into You" is one of the defining sad-beautiful songs of the decade. Owners who grew up in that era may be naming their pet after that specific, gauzy, romantic sound. It's a subtle reference that most people at the dog park won't catch, which makes it all the more appealing to the type of owner who does.
Sound Fit for Active Dogs
The short A and double-Z make Mazzy punchy in the yard. It's easy to say with urgency. Suits quick, lively dogs — Border Terriers, scruffy mixed breeds, or any dog that moves like it's in a hurry.
The Counter-Reading: Spelling Variation Risk
Mazzy, Mazzie, Mazze: people will try all of them. If the spelling matters to you, be prepared to correct it repeatedly. The sound is unambiguous; the letters are not.