Soatris Island (Bulgarian: остров Соатрис, romanized: ostrov Soatris, IPA: [ˈɔstrof suˈatris]) is the rocky island off the northwest coast of Pasteur Peninsula on Brabant Island in the Palmer Archipelago, Antarctica, which extends 400 m in east-southeast to west-northwest direction and is 200 m wide.
The island is named after the ancient Roman settlement of Soatris in Northeastern Bulgaria.