Dexter, the No. 27 most popular name in 2012, didn't break the top 100 until 2007. It was also No. 1 on the trendiest dog names list.
Penny has gained the most popularity since entering the top 100 at No. 94 in 2003, making it the No. 1 trendiest female cat name. It really jumped last year, moving from No. 48 to No. 25. Think the popular character from The Big Bang Theory has anything to do with that?
If you didn't see your cat's name on our most popular kitten names list, fear not; that carefully chosen kitty moniker could still be right on trend. We looked at the names of more than 643,000 kittens born over the past year and compared them with a decade ago to come up with our list of names gaining the most in popularity.