AIV

AIV may refer to:


 * Aimco, NYSE symbol AIV, an American operator of apartment communities
 * AIV fodder, a kind of acidified silage
 * Bavarian A IV, an 1852 German steam locomotive model
 * George Downer Airport (IATA: AIV) serving Aliceville, Alabama, USA
 * Panoz AIV Roadster, an American automobile
 * Angiotensin IV (angiotensin 4)