ROMA husky Bella might be a one-in-a-million for her owner Courtney Cosgrove, but her name is as common as mud.

The name Bella has been found to be the most popular moniker for both dogs and cats in Australia, with Charlie the second-most for both animals.

Ms Cosgrove said she had always loved the name Bella because she had a previous dog with the same name.

"I used to have another dog Bella, which I got from when I used to like Twilight," she said.

Other popular names on the list for dogs, provided by Medibank Pet Insurance, included Max, Molly, Ruby, Coco, Buddy and Oscar.

Ms Cosgrove said it was surprising to hear how popular the name was, but admitted she did know a lot of other pets with the same title.

"I know at least four other people with dogs called Bella - it's very popular right now," she said.

"It was surprising to hear that, but when you think it, it does make sense."

Regardless of her name, Bella has been proven to be very mischievous since Ms Cosgrove got her as a Christmas present last year.

"She's very mischievous - she got a lot when she was younger, but she's very lovable," she said.

TOP NAMES FOR DOGS

Bella, Charlie, Max, Molly, Ruby, Coco, Buddy, Oscar, Lucy, Toby