Route 515 is a 38-kilometre (24 mi) long east–west secondary highway in the south east portion of New Brunswick, Canada.

The road runs parallel to the north bank of the Bouctouche River.

The road crosses a small branch of the Bouctouche River and continues to the community of Maria-de-Kent.

Continuing, the road meets up with the southern terminus of Route 495 before turning west and continuing to the community of Saint-Cyrille.

The road continues to the community of McLean Settlement, where it briefly merges with Route 490.