Abstract: The present invention provides compositions and methods relating to or derived from anti-PAR-2 antibodies. In particular embodiments, the invention provides antibodies that bind human PAR-2, PAR-2-binding fragments and derivatives of such antibodies, and PAR-2-binding polypeptides comprising such fragments. Other embodiments provide nucleic acids encoding such antibodies, antibody fragments and derivatives and polypeptides, cells comprising such polynucleotides, methods of making such antibodies, antibody fragments and derivatives and polypeptides, and methods of using such antibodies, antibody fragments and derivatives and polypeptides, including methods of treating or diagnosing subjects having PAR-2-related disorders or conditions.