Frobisher is an occupational surname, a variant form of 'furbisher', i.e. a person who 'furbishes' (burnishes) weapons and armour as part of the production process (Middle English fourbishour, from Old French forbisseor).Dictionary of American Family Names ©2013, Oxford University Press Notable people with the surname include:

Benjamin Frobisher (1742–1787), Canadian fur trader Benjamin Joseph Frobisher (1782–1821), Canadian fur trader and politician, son of Joseph Frobisher Joseph Frobisher (1740–1810), Canadian fur trader and politician, brother of Benjamin and Thomas Frobisher Martin Frobisher (c. 1535 – 1594), English sailor and explorer Thomas Frobisher (1744–1788), Canadian fur trader, brother of Joseph and Benjamin Frobisher

Fictional characters: Arthur Frobisher, villainous billionaire in the television series Damages Buck Frobisher, character in the television series Due South Robert Frobisher, composer in the novel Cloud Atlas and mentioned in other David Mitchell books

References