Arrowsmith Island (Bulgarian: остров Ароусмит, romanized: otrov Arousmit, IPA: [ˈɔstrof ˈarousmit]) is a mostly ice-covered island in the Pitt group of Biscoe Islands, Antarctica.

It is 2.53 km long in west-southwest to east-northeast direction and 900 m wide.

The island is named after the British cartographer Aaron Arrowsmith (1750-1823) who published a map of the south polar region in 1794.

This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.

This Biscoe Islands location article is a stub.