Herenga ā Nuku Aotearoa (English: Outdoor Access Commission), formerly the New Zealand Walking Access Commission (Māori: Ara Hīkoi Aotearoa), is a crown agent that helps to negotiate, establish, maintain, and improve public access to the outdoors.

It works with other agencies, local groups and communities to create and tend to tracks and trails.

Although it is called the Walking Access Commission it also works on public access to the outdoors for other outdoor users including mountain bikers, anglers, hunters, horse riders, trail runners, climbers and landowners.

The commission administers a national strategy on outdoor access.

The commission has a small staff in Wellington and a network of regional field advisers located around the country.