Altburg is the name of the following places:
Altburg (Calw), village in the borough of Calw in Baden-Württemberg, Germany Altburg (castle), a reconstructed Celtic settlement near Bundenbach in the Hunsrück, Germany Altburg ZH, hamlet in the municipality of Regensdorf in the canton of Zürich, Switzerland Alt-Regensberg Castle, a castle in same location
Altburg is the name of the following people:
Altburg Marie Mathilde von Oldenburg (1903–2001), daughter of Frederick Augustus II of Oldenburg