Jacinda Ardern is featuring in Time magazine's list as one of the world's 100 most influential people of 2019.
Ardern features alongside actor Dwayne "The Rock" Johnson, singer Khalid, Game of Thrones actress Emilia Clarke and Hilary Clinton.
Ardern's blurb is written by London Mayor Sadiq Kahn, who writes how Londoners were "heartbroken to wake up to news of the horrific terror attack in Christchurch, shocked by the callous targeting of innocent civilians for no reason other than their faith".
Kahn states that Ardern's leadership since then "has been an inspiration to us all".
"Not only is she delivering such swift action on gun control, she has sent a powerful message around the world about our shared values — that those who seek to divide us will never succeed, and that New Zealand will always protect and celebrate the diversity and openness that make our countries so great."