IOD

IOD or Iod may refer to:


 * Ignition off draw, the drawing of electric current in a vehicle while shut off
 * Indian Ocean Dipole, an irregular oscillation of sea surface temperatures
 * Institute of Directors, a British professional organisation
 * Interactive Orbit Determination, a data reporting format for satellite observation
 * International One Design, a sailboat designed in the 1930s
 * Iod (river), a river in Romania, tributary of the Mureș
 * Iod, a village in the commune Răstolița, Mureș County, Romania