The Jefferson County Courthouse is a historic building in Charles Town, West Virginia, USA.

The courthouse is set on a high stone foundation, facing onto a small yard enclosed by a metal fence.

The porch has four Doric columns, with small copies of the portico's pediment over the main floor windows and front door, and a projecting central iron balcony on the upper level.

During the American Civil War the courthouse was heavily damaged by cannon fire and was salvaged for metal.

In 1910 Alfred B. Mullett designed an extension to the rear, with a later Georgian Revival addition comprising a jail and sheriff's offices.