Alder Point Harbour is a small public harbour and boat launch located on Cape Breton Island, Nova Scotia, near Highway 162 on the Little Bras d'Or channel. It sits at approximately 46° 18' 33" N, 60° 17' 2" W, in the vicinity of North Sydney Harbour.

The facility is listed under Canada's Fishing and Recreational Harbours Regulations, reflecting its status as a federally recognized public harbour.

The Little Bras d'Or provides one of the entry points into the Bras d'Or Lakes, though this passage is restricted to smaller power craft with a draft under 10 feet and an air draft under 21 feet.

Alder Point is among the public launch ramps available to boaters who prefer to trailer their vessels to this waterway.