Nesvizh Castle or Niasvizh Castle is a residential castle of the Radziwil family in Nesvizh, Belarus.
Nesvizh Palace is one of the oldest settlements and most famous places in Belarus. The estate and town was acquired by the Radziwil family in the middle of the 16th century. The foundation stone of Nesvizh Palace was laid in 1584. It was rebuilt many times and as a consequence has features of many architectural styles.