National Party President Peter Goodfellow is stepping away from the role after 13 years.
He announced on Thursday he will not seek re-election at the party's annual conference in August, but will remain as a director on the board for one final term "to assist in the transition and help provide counsel to the majority of relatively new members who joined the board less than one year ago".
A new president will be elected by the board at annual conference.
National Party leader Christopher Luxon thanked Goodfellow for "his enormous contribution" to the party as its longest serving president.
"During Peter’s tenure as president, a strong National Party machine supported the successful Key/English era. He continued through a period of change and reset, with National now being competitive once again and having our best opportunity to win in 2023," Luxon said.
Goodfellow said it had been "an honour and a privilege" to serve as president for over 13 years.
"I’ve seen highs and lows, and after much reflection, I feel the time is now right for someone else to take National into the future as president."
Goodfellow said he had intended to retire in 2016, but with the resignation of then Prime Minister John Key, "I was convinced to remain in the role to help ensure a stable transition of leadership to Bill English and to deliver our 2017 General Election campaign".
"Since 2018 I’ve worked tirelessly to help improve and diversify the skillset around our board table. To revitalise and reform the Party and its systems, and to unite our great Party after a very public period of instability and distraction. During my time, I’ve always had the best interests of the Party at heart.
"The National Party is now going from strength to strength. We have real momentum under the leadership of Christopher Luxon and Nicola Willis [deputy leader]. I’m confident we have the right people, processes, and plans in place to move the National Party forward, and I have every confidence National will win the 2023 General Election."