Over 70 floats, including ones made by the rainbow community, political parties, universities and businesses, supported the LGBTTQI community in Auckland last night.
This year's parade was the largest yet, with between 25,000 and 30,000 people turning out to watch the revelry.
Addressing the crowd, Ms Ardern, who has attended previous parades, said the government "walks beside" the Rainbow community.
The event was a great opportunity to celebrate diversity and connect with young people.
Significant mental health issues still existed within the young rainbow community, she said.
"Bullying, a sense that you can't be who you are in certain environments - we do still need to be worried about that." Read more via Radio NZ