Fürstenberg-Heiligenberg was a county and later a principality in southern Baden-Württemberg, Germany, located in the historical territory of Heiligenberg. It was created as a partition of Fürstenberg-Baar in 1559, and it suffered one partition between itself and Fürstenberg-Donaueschingen in 1617. When Herman Egon of Fürstenberg-Heiligenberg was elevated to the estate of imperial princes (Reichsfürstenstand) in 1664, Fürstenberg-Heiligenberg was raised to a principality and existed as an imperially immediate territory. It inherited Fürstenberg-Donaueschingen in 1698, but following the extinction of its branch in 1716, it was inherited by Fürstenberg-Fürstenberg.

Counts of Fürstenberg-Heiligenberg (1559–1664)

Princes of Fürstenberg-Heiligenberg (1664–1716)

Herman Egon's two surviving brothers, Francis Egon and Wilhelm Egon, were also titular Princes of Fürstenberg-Heiligenberg, but they never ruled the principality.