Eskilstunahus County, or Eskilstunahus län, was a county of the Swedish Empire from 1634 to 1683, named after the county seat of Eskilstuna House.
The county of Eskilstunahus, also known as Eskilstunahus län, existed within the Swedish Empire from 1634 to 1683 and was named after the town of Eskilstuna House.