What was the title of Banksy's first exhibition in the United States?

Existencilism was the title of Banksy's first exhibition in the United States.

The exhibition took place in Los Angeles in 2002 at the 33 1/3 Gallery. It marked an early step in Banksy's international career, when his stencil art was moving from the British street-art scene into gallery and exhibition spaces abroad.

The title combines the words “existentialism” and “stencil,” reflecting the technique that had become central to Banksy's work. His stencils allowed him to create quickly and repeat images in public places, an approach closely connected to the secrecy surrounding illegal graffiti.

Existencilism is sometimes confused with Barely Legal, another Los Angeles exhibition associated with Banksy. Barely Legal was a much larger 2006 event and included the famous live elephant installation, so it was not the first US show.