Burg Hedelfingen, Medieval castle ruins in Hedelfingen district, Stuttgart, Germany.

Burg Hedelfingen is a vanished hilltop castle on the Wangener Höhe, a ridge between the Neckar and the Dörrbach, about one kilometre northwest of Hedelfingen. The site, still called "Burg", lies behind the Burgbrünnele at the eastern end of the Rennweg. In 1926, wall remains and burnt debris were found in the nearby Burggrabenweg ditch, likely the old neck ditch.

The fortress dates to the 14th century and served the Counts of Württemberg as a control point over the region. Excavations in the 1920s discovered wall fragments and fire marks that confirmed the site had been a substantial settlement.

The name "Burg" survives in the field name and in the 1366 deed, when Irmelgart Stöfflerin, a nun at Weil, gave away the vineyard "uff der Burg, den man nennt den Stöffeler". The Burggrabenweg follows the presumed line of the old moat, and the nearby Burgbrünnele spring marks the spot behind which traces of the castle are still thought visible.

The Burggrabenweg path runs through the ruins and traces the presumed line of the former castle moat in a north-south direction. The route is easy to walk and works well as part of a casual stroll through the neighborhood.

The Burgbrünnele spring sits at the eastern end of the Rennweg path and marks an old water source that once served the castle inhabitants. This small spring remains largely overlooked by visitors despite its long presence on the site.