EIB may refer to:

Science and technology Earth's energy imbalance, a condition of unequal inflow of energy to, and outflow of energy from, Earth's climate system Element Interconnect Bus, on a Cell microprocessor European Installation Bus, a communications protocol Exbibyte, a unit of digital information

Other uses EIB Network, the syndication network for The Rush Limbaugh Show European Investment Bank, the European Union's financing institution Even in Blackouts, an American band Exercise-induced bronchoconstriction Expert Infantryman Badge, of the United States Army Exportbank, a Philippine commercial bank Extreme Ironing Bureau, the governing body of the tongue-in-cheek sport of extreme ironing