Grace Bailey, also known for many years as Mattie, is a two-masted schooner whose home port is Camden Harbor, Camden, Maine. Built in 1882 in Patchogue, New York, she is one of four surviving two-masted wooden-hulled schooners, once the most common vessel in the American coasting trade. She was one of the first ships in the fleet of historic vessels known as "Maine windjammers", which offer cruises in Penobscot Bay and the Maine coast, entering that service in 1939. She last underwent major restoration in 1989-90. She was declared a National Historic Landmark in 1992.