Girl World was a solo exhibition by Courtney Costa presented at the Langford Art Gallery from May 31 through August 1, 2026. The exhibition featured a selection of work created over the previous seven years of Costa's artistic practice, and included illustrations, paintings, and sculptural papier-mâché pieces.

In addition to the opening reception, Girl World was accompanied by a series of public events, including an artist talk, multiple Second Friday events, and a pop culture lecture exploring the inspirations and themes behind the collection.

Girl World marked Courtney Costa's first solo exhibition, representing a significant milestone in her artistic career.