IRAP may refer to:
The International Refugee Assistance Project The International Road Assessment Programme The Institut de Recherche en Astrophysique et Planétologie The Implicit Relational Assessment Procedure, a computer-based psychological measure Interleukin 1 receptor antagonist, a protein IRAP PhD Program, an international joint doctorate program in relativistic astrophysics IRAP RMS Suite, a software suite for geomodelling and designing reservoirs Insulin responsive aminopeptidase, an alias for Leucyl/cystinyl aminopeptidase