Watson's Mill is an historic flour and gristmill in Manotick, Ontario, Canada. It is the only working museum in the Ottawa area and one of the very few operating industrial grist mills in North America. Watson's Mill still sells stone-ground whole wheat flour which is made on site. The mill is also well known for its ghost Annabelle. The legend is that Ann Currier, wife of Joseph, haunts the mill, following her death in a tragic accident there in 1861. Watson's Mill is Manotick's most recognized landmark. Its image is used as a symbol for the village.

Manotick is a community in Rideau-Jock Ward in the rural south part of the City of Ottawa, Ontario, Canada. It is a suburb of the city, located on the Rideau River, immediately south of the suburbs Barrhaven and Riverside South, about 25 km (16 mi) from downtown Ottawa. It was founded by Moss Kent Dickinson in 1864. He named the village 'Manotick', after the Algonquin word for 'island'. It has been part of the City of Ottawa since amalgamation in 2001. Prior to that, it was located in Rideau Township. According to the Canada 2016 Census, Manotick had a population of 4,486.