Rebekah Jaung will contest the Northcote by-election for the Green Party.

The Green Party has selected Rebekah Jaung as its candidate for the Northcote by-election.

Jaung, a 30-year-old doctor, was the Green Party's candidate in 2017.

She will face Labour's Shanan Halbert and National's Dan Bidois.

The by-election was sparked by former Health Minister Jonathan Coleman's resignation from the North Shore seat.

READ MORE: Green Party will stand candidate in Northcote by-election

Jaung won 2457 electorate votes in 2014, around 6.8 per cent of the total - roughly the same share of the party vote that the Greens won in the seat.

Jaung was the only contender for the party's candidacy, with 2014 candidate Anne-Elise Smithson ruling herself out.

The Party's leadership considered not running in the by-election, which they are unlikely to win, but the local party was very keen to contest the race.

Jaung was selected at a meeting on Thursday night.

She moved to New Zealand with her parents from Korea when she was six and has lived on the North Shore ever since.

Jaung said the by-election race would naturally be quite different from the 2017 election, as this time she was properly running for the electorate vote - not the party vote.

"An extra Green MP would mean we would have a much stronger green voice in the heart of Parliament," Jaung said.

She said the issues facing the electorate were more complicated than the simple transport problems the other candidates were talking about.

A series of extreme weather events that had hit the electorate meant climate change would be front-of-mind for many. Health was also a top priority.

"As a doctor I know how underfunded the health system is and how desperately it needs a massive boost to ensure the health of New Zealanders, especially the most disadvantaged," Jaung said.

"I want to make sure the Government has in it voices that understand the need for all policy to consider health and advocates for our hard-working nurses and midwives who are not currently getting the pay they deserve. "

Green co-leader Marama Davidson said Jaung would be an "excellent addition" to the Green parliamentary team.

"She's a passionate professional who has dedicated her career to others through her work on public health and peace," Davidson said.

"Frankly we need more people like her in parliament."