Nackawic is a former town in New Brunswick, Canada. It held town status prior to 2023 and is now part of the rural community of Nackawic-Millville. It is approximately 65 km west of the city of Fredericton on the east bank of the Saint John River.

Nackawic-Millville is a rural community in the Canadian province of New Brunswick. It was formed through the 2023 New Brunswick local governance reforms.