Frederiksborg

Frederiksborg is

• Frederiksborg Amt, a former Danish Amtskommune on North Zealand
• Frederiksborg Castle, a moated castle in Hillerød on the Danish island of Zealand

Frederiksborg is the name of:

• Alexandra of Frederiksborg (born 1964, née Alexandra Christina Manley ), divorced wife of Prince Joachim of Denmark

• Disambiguation