Jacinda Ardern shakes Donald Trump's hand

Prime Minister Jacinda Ardern has met US President Donald Trump at the APEC conference in Vietnam on Saturday (NZ time).

Ms Ardern revealed she shook Mr Trump's hand, and said "it was a standard handshake".

"I was introduced last night to President Trump by Justin Trudeau," Ms Ardern told reporters.

"I shook his hand and said hello."

A picture posted to Twitter showed Mr Trump glancing appreciatively at Ms Ardern, who was dressed in a white blazer.

It's not the first contact Ms Ardern had with the US leader. The US President called her to congratulate her on her election win last month. According to Ms Ardern, Mr Trump took an interest in the outcome of New Zealand's election.

"The President was genuinely interested in our election, and spoke about the coverage it had received in Washington DC," she said.

At the time, Ms Ardern said she was looking forward to a productive relationship with Mr Trump.

"We are likely to meet at APEC, where I look forward to carrying on talks around our role in the Asia Pacific region, and our commitment to a strong relationship with the United States."

Newshub.