Daniel Derbyshire (December 11, 1846 – June 18, 1916) was a Canadian politician. Born in Plum Hollow, Leeds County, Canada West, the son of Harvey and Mary Derbyshire, Derbyshire was educated in Public Schools of the district and in the Athens High School. He received a first class normal certificate, after which he taught school for a few years. He later entered the dairy business and opened a Plum Hollow factory and another one in Athens. In 1881 he moved to Brockville, Ontario having accepted a position as representative of A. A. Ayer & Co. of Montreal. He later entered into the handling of butter and factory supplies. He was elected a member of the Brockville Council and was Mayor of Brockville in 1886 and 1889.