An article in the renowned fashion magazine's latest American edition about the 37-year-old describes her as "young, forward-looking, and unabashedly liberal".

The article - which includes interviews and a photo shoot - covers parts of last year's election, Ardern's first days in office and news of her pregnancy, among other topics.

She told reporters on Thursday she had "hummed and hawed' about whether to do the article over the summer, but ultimately decided it would give New Zealand some exposure.

"You get called a lot of things when you're in politics. I don't try to keep a tally," she said of the anti-Trump title.

Australian Associated Press