March Township is a geographic township and former municipality originally part of Carleton County in eastern Ontario, Canada. It is currently part of the City of Ottawa. It is located in the western part of the county, bordered to the northwest by Torbolton Township, to the southwest by Huntley Township, to the east by Nepean, to the south by Goulbourn Township and to the north by the Ottawa River. According to the Canada 2001 Census, the Township had a population of approximately 26,650.