Adir or ADIR may refer to:
Air Data Inertial Reference Unit (ADIRU), a key component of the Air Data Inertial Reference System (ADIRS), which supplies air data and inertial reference information to aircraft systems Adir, meaning "Strong One," one of the names of God in Judaism Adir Hu, a hymn sung by Jews worldwide at the Passover Seder The F-35I "Adir", a customised variant of the Lockheed Martin F-35 Lightning II developed specifically for the Israeli Air Force Autism Diagnostic Interview-Revised, a structured interview conducted with the parents of individuals who have been referred for the evaluation of possible autism or autism spectrum disorders People
Ilana Adir (born 1941), Israeli Olympic sprinter Adir Ascalon, surrealist painter and sculptor, son of Maurice Ascalon Adir Maman (born 1991), Israeli footballer Adir Miller (born 1974), Israeli actor and comedian Adir Zik (1939–2005), Israeli television producer and journalist
See also Adheera, fictional villain in the 2022 Indian film KGF: Chapter 2, played by Sanjay Dutt