Regensberg is a municipality in the district of Dielsdorf in the canton of Zurich in Switzerland.

This is not to be confused with similarly named Regensburg, a German city in Bavaria.

Regensberg may also refer to:

• Regensberg Castle, sometimes referred to Neu-Regensberg, a hill castle in Switzerland built about the mid-13th century
• Alt-Regensberg Castle, also referred to Altburg, a hill castle which was built about the mid-11th century AD
• Regensberg family, a family of counts from the Canton of Zürich in Switzerland

• Regensburg (disambiguation)

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