Route 630 is a 59.4-kilometre (36.9 mi) long mostly north–south secondary highway in McAdam Parish, New Brunswick, Canada.

The route starts at Route 122 in Lakeland Ridges where it travels south through a sparsely populated area past Carroll Ridge and past several lakes including Amelia Lake, Moose Lake, Sixth Lake, Fifth Lake, East Brook Lake, and Spednic Lake on the Canada/US Border.

The road passes First Lake before crossing Route 4 near St. Croix.

The road continues through a mostly treed area to Meredith Settlement before ending in Andersonville at Route 3.

[2] in 2013, Route 630 was nominated for the worst road in Atlantic Canada.