However, since then the name is proving to be more fashionable jumping from 33 boys given the name in 2011 to 95 last year.

A character in Disney movie The Good Dinosaur has also been named Arlo and Registrar of Births, Deaths & Marriages Amanda Ianna said there is also a resurgence overseas in the United States where it was initially popular between World War I and World War II.

“It might be Arlo the Good Dinosaur or celebrity babies such as Toni Collette’s son who have inspired the surge, but it is now one of the fastest growing names in the state,” she said. 

“At this rate we will see it crack the top 100 if parents continue to follow the trend.”

Although it is traditionally a boy’s name and only a handful of girls were named Arlo in NSW last year, it has been nudged into the unisex column with American actor and comedian Johnny Knoxville gave the name to his daughter in 2011.

Mrs Webb said when she was pregnant with Arlo she and her husband struggled with baby names and went through a long list in a baby name book before settling on the moniker.

“Neither of us had heard the name used before,” she said.

However, since his birth on March 21, 2014 she said they have come across other boys named Arlo, all of them younger than her son.

“In the last 12 months I’ve had, ‘I know so and so who’s had an Arlo,” Mrs Webb said.

“I found the same thing with my daugther [Indy] her name cropped up a lot, but after I named her.”

Although she has been slightly ahead of a trend both times Mrs Webb said she was not bothered by the surge in popularity of the names.

“I don’t go out to name my kids a name no one else has ... I like that [Arlo] was something different but it’s a cool name and I can’t begrudge people that will think it’s a cool name,” she said.

tanya.marschke@fairfaxmedia.com.au