A young British girl whose wealthy family, while on a yacht cruise, stopped on the beach of Isla Sorna for a picnic, unaware that the island was inhabited by dinosaurs. Wanting to explore and be away form her parents, Paul and Deidre, she wanderd away and ran into a Compsognathus, whom she gave part of her roast beef sandwich. This only attracted more Compys. Believing that they wanted the sandwich, she threw it on the ground. This only gained the attention of half the group of Compys, the other half attacking her directly. Though she survived, her parents were next in line to sue InGen.
Cathy Bowman was played by Camilla Belle.