Huis ter Nieuwburg or Huis ter Nieuburch was a palace in Rijswijk, Holland, Dutch Republic. The symmetrical French Classicist building was probably designed by the Dutch architect Jacob van Campen together with Constantin Huygens and the prince himself. According to Slothouwer the designs were carried out by Arent van's Gravesande who was replaced by the French architect Simon de la Vallée in 1634. The palace was built between 1630 and 1636 for stadtholder Prince Frederick Henry.
The palace with gardens was the country house of the Princes of Orange for years, and it was used for the peace negotiations resulting in the Treaty of Ryswick in 1697. After the death of Prince William III in 1702, the palace was inherited by the Kings of Prussia, until it was given back to the Princes of Orange by King Frederick II.
The gardens of the palace were formal French Renaissance gardens constructed in 1636. In front of the palace were trees and parterres enclosed by walls. Behind the palace was a larger garden with four rectangular ponds.
The building was demolished in 1790 after years of neglect. At present, the area is woodland known as the Rijswijkse Bos.