The orange giant sulphur or large orange sulphur (Phoebis agarithe) is a butterfly in the Pieridae family. It is found from Peru north to southern Texas and peninsular Florida. Rare strays can be found up to Colorado, South Dakota, Wisconsin, and New Jersey. The species has also been introduced in Hawaii. The habitat consists of open, tropical lowlands including gardens, pastures, road edges, trails and parks.The wingspan is 57–86 mm (2.2–3.4 in).