Horace Harvey Cady (February 21, 1801 – October 29, 1887) was an American politician and farmer.
He served in local offices in Macomb County, Michigan.
He served in the Michigan House of Representatives in 1843, 1865, and 1873–1874.
His brother, Chauncey G. Cady, also served in the Michigan House of Representatives.
This article about a Michigan politician is a stub.