Barbie star Margot Robbie jets into New Zealand to launch gin brand Papa Salt

Barbie star Margot Robbie has been spotted in New Zealand as she launches her gin brand in the country.

In an Instagram post from Auckland restaurant Onslow, the Wolf of Wall Street star was seen smiling next to MasterChef NZ judge Josh Emett.

"We had the incredible honour of hosting the @papasaltgin founders at Onslow for our Sunday long lunch yesterday to celebrate their launch of their new gin in New Zealand," the post said.

According to its website, "Reminiscent of slow n' salty days, Papa Salt is an easy-drinking gin made for sharing".

Robbie co-founded the brand with Charlie Maas, Regan Riskas Maas, husband Tom Ackerley and Josey McNamara.

On Saturday, Robbie reduced a Sydney restaurant's customers to tears by dropping in and buying everyone a free cocktail from the range.

Australian media reported her visit to Merivale Mimi's in Coogee with husband Ackerely saw 126 diners given a round of cocktails.

It was also claimed "some people were crying" at the offer - and afterwards Robbie spent over an hour talking with everyone and taking photos.