Project Mercury is a split album by American heavy metal bands Rosetta and Balboa.

Michael of Scene Point Blank called the album a "dynamic adventure in music," and gave it four stars out of five.

He praised Balboa's tracks, calling "Planet of Slums" "some of the most ambitious and emotional hardcore you can find hanging around."

He went on to say, "Balboa manage to reinvent themselves a bit with their anguished arts of Envy-like work, and Rosetta offer some prolonged pieces of guitar-heavy ambience.

He wrote, "Project Mercury features a...curious partnership between Neur-Isis-inspired [sic] Rosetta and the political, post-hardcore outfit Balboa.