Insar may refer to: Insar (inhabited locality), several inhabited localities in Russia Insar Urban Settlement, a municipal formation into which the town of district significance of Insar in Insarsky District of the Republic of Mordovia, Russia is incorporated Insar (river), a river in the Republic of Mordovia, Russia Interferometric synthetic aperture radar (InSAR), a radar technique used in geodesy International Society for Autism Research (INSAR), sponsored by the Autism Research Institute Ahmed Insar, a candidate in the Nottingham City Council election, 2011 (England) Ansar, Lebanon
