Charles Uniacke Mader (April 10, 1856 – ) was a merchant and political figure in Nova Scotia, Canada. He represented Lunenburg County in the Nova Scotia House of Assembly as a Liberal member from 1904 to 1911.
He was born in Maders Cove, Lunenburg County, Nova Scotia, the son of Francis Mader, of German descent, and Mary Andrews. He first worked as a clerk in a general store and then went into business on his own in Mahone Bay in 1880. In the same year, he married Martha Ernest. Mader built a general store in Mahone Bay in 1887 and also operated a fishing fleet. He served as a member of the local school board. In 1884, he married Charlotte A. Keddy after the death of his first wife.