Route 790 is a 31.1-kilometre (19.3 mi) long mostly east–west secondary highway in the southwestern portion of New Brunswick, Canada.

It then travels southeast through mostly swamp and farm area, past Anderson Lake, to the eastern terminus of Route 795.

Crossing into Dipper Harbour, the route turns east and circles Dipper Harbour before continuing east to Point Lepreau and Maces Bay, where the route turns north.

It then travels southeast through mostly swamp and farm area, past Anderson Lake, to the eastern terminus of Route 795.

Crossing into Dipper Harbour, the route turns east and circles Dipper Harbour before continuing east to Point Lepreau and Maces Bay, where the route turns north.