IH may refer to:
In science and technology In medicine Immune-histochemistry intrauterine hypoxia Hepatitis A (infectious hepatitis) Idiopathic hypersomnia Intracranial hypertension
Other uses in science and technology Hydrogen iodide Induction heating Induction heater Industrial hygiene, the control and prevention of hazards in a work environment Ih, full icosahedral symmetry
Other uses ih, see List of Latin-script digraphs#I Információs Hivatal, a Hungarian intelligence office International House World Organisation International Harvester, a manufacturer of agricultural machinery, construction equipment, trucks, and other products IH, notation for intersection homology groups Interstate Highway
See also HI (disambiguation)