ISAR

ISAR can refer to:

*Intergovernmental Working Group of Experts on International Standards of Accounting and Reporting (ISAR)
*International Search And Rescue Competition
*Institute for the Study of Academic Racism
*International Society for Astrological Research
*Initiative for Social Action and Renewal in Eurasia
*International Society for Antiviral Research
*International Society for Animal Rights
*International Symposium on Audit Research
*Institut des Sciences Agronomiques du Rwanda
*Institute for the Study of American Religion
*Infrared Sea Surface Skin Temperature Radiometer
*Internet Standards Assessment Report
*International Symposium on Augmented Reality
*Inverse synthetic aperture radar, a technique to generate two-dimensional radar images of a target

Isar can refer to:

*Isar, a German river
*Intelligible semi-automated reasoning