William Dowler Morris (August 22, 1857 – April 13, 1931) was mayor of Ottawa, Canada in 1901. He was born in County Leitrim, Ireland in 1857 and came to Canada in 1877. He became involved in the oil, coal and real estate businesses; he also owned a brickyard. Morris was first elected to city council in 1892. He was forced to resign as mayor after being convicted of drinking after hours at an Ottawa hotel, an offence under the liquor license act.