Frederick may refer to:
- Frederick the Great, an ancient Earth monarch.
- Frederick Bagwell, an officer of the Grayson Space Navy.
- Sir Frederick Clarke, the discoverer of the Manticore System's planets.
- Frederick Goldstein, an officer of the Royal Manticoran Navy.
- Sir Frederick Ormskirk, Earl of Tanith Hill, Sixth Space Lord in the Mourncreek and Alexander Admiralty.
- Frederick Topolev, an officer of the Mesan Alignment Navy.
- Frederick Truman, another officer of the Royal Manticoran Navy.
- Frederick Warner, son of Craig and Carol Warner.
- Frederick Winton-Travis, a Manticoran industrialist of Royal blood.