This is a list of numbered provincial highways in the Canadian province of New Brunswick.

These provincial highways are maintained by the Department of Transportation and Infrastructure in New Brunswick.

Marked by black signs, these are the tertiary routes that fill out the highway network and connect small communities and areas to more important highways.

The speed limit is generally 80 km/h (50 mph) or lower depending on road design standards.

The following roads are designated provincial highways by the New Brunswick Department of Transportation,[citation needed] but have no signed numerical designation: