Wesley Fletcher Orr (March 3, 1831 – February 16, 1898) was a Canadian businessman, journalist, and politician. He was the eighth mayor of the city of Calgary, Alberta.Orr was born in Lachute, Quebec on March 3, 1831 to Samuel G. P. Orr and Jane Hicks. He married Priscilla Victoria Miller circa 1863. Together they had two daughters and one son.Prior to moving to Calgary, Orr spent his life in various occupations. These include: cattle-dealer, salesman, teacher, and coroner.