The Henry County Courthouse, Jail, and Warden's House in New Castle, Kentucky was built in 1875. It was designed by the McDonald Brothers in a mix of Italianate, Second Empire, and other styles. It was listed on the National Register of Historic Places in 1977.
It is a six-bay two-story brick building on a rusticated stone foundation. A stone jail and brick jailer's house extend to the rear, making the overall plan T-shaped. With .
In 2016, the building was listed as a contributing building to the New Castle Historic Commercial District.
See also Marion County Jail and Jailor's House National Register of Historic Places listings in Henry County, Kentucky
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