The resignation of Jacinda Ardern as the 40th prime minister of New Zealand and leader of the Labour Party was announced on 19 January 2023, at a press conference given by Ardern at the War Memorial Centre in Napier, Hawke's Bay. Ardern, who had been in office since 2017, cited occupational burnout as the primary reason for her resignation. She stated that she "no longer had enough in the tank" to fulfil the demands of the premiership, and that she would not be seeking re-election at 2023 New Zealand general election. She also expressed hope that she would spend more time with her family, and that she had left behind a legacy that one "can be kind, but strong" and "your own kind of leader – one that knows when it’s time to go."

Dame Jacinda Kate Laurell Ardern is a New Zealand former politician who served as the 40th prime minister of New Zealand and leader of the Labour Party from 2017 to 2023. She was a Labour member of Parliament (MP) as a list MP from 2008 to 2017, and for Mount Albert from 2017 to 2023.