Jefferson County Courthouse or variation prefaced with Old may refer to:
Jefferson County Courthouse (Bessemer, Alabama), a contributing building in the Downtown Bessemer Historic District, listed on the National Register of Historic Places (NRHP) Jefferson County Courthouse (Birmingham, Alabama) Jefferson County Courthouse (Arkansas), Pine Bluff, Arkansas, a contributing building in the NRHP-listed Pine Bluff Commercial Historic District Jefferson County Courthouse (Florida), Monticello, Florida, a contributing building in the NRHP-listed Monticello Historic District Jefferson County Courthouse (Georgia), Louisville, Georgia, NRHP-listed Jefferson County Courthouse (Idaho), Rigby, Idaho, NRHP-listed Jefferson County Courthouse (Illinois) Jefferson County Courthouse (Iowa), NRHP-listed Jefferson County Courthouse (Kansas), Oskaloosa, Kansas Louisville Metro Hall, formerly known as Jefferson County Courthouse, in Louisville, Kentucky Jefferson County Courthouse Annex, Louisville, Kentucky Old Jefferson Parish Courthouse, Gretna, Louisiana, NRHP-listed Jefferson County Courthouse (Mississippi), designed by architect of Pointe Coupee Parish Courthouse Jefferson County Courthouse (Montana), Boulder, Montana, NRHP-listed Jefferson County Courthouse (Nebraska), Fairbury, Nebraska, NRHP-listed Jefferson County Courthouse Complex, Watertown, New York, NRHP-listed Jefferson County Courthouse (Ohio), Steubenville, Ohio Jefferson County Courthouse (Oklahoma), Waurika, Oklahoma, NRHP-listed Jefferson County Courthouse (Texas), Beaumont, Texas, NRHP-listed Jefferson County Courthouse (Washington), Port Townsend, Washington, NRHP-listed Jefferson County Courthouse (West Virginia), Charles Town, West Virginia, NRHP-listed