Gustav Kirchhoff's father was Friedrich Kirchhoff, a law councillor in Königsberg with a strong sense of duty to the Prussian state. Gustav's mother was Johanna Henriette Wittke.
Gustav Kirchhoff 's ama ay Friedrich Kirchhoff, isang batas konsehal sa Königsberg na may isang malakas na kahulugan ng mga tungkulin sa Pruso estado. Gustav ng ina ay Johanna Henriette Wittke.