EIF may refer to:
Science and medicine Echogenic intracardiac focus Eukaryotic initiation factor Exponential integrate-and-fire
Sport Edsbyns IF, a Swedish bandy club Ekenäs IF, a Finnish football club Eskilsminne IF, Swedish football club
Other uses Easter Island Foundation, an American conservation organization Eclaireurs israélites de France, a French Scouting organization Edinburgh International Festival, a Scottish performing arts festival Empirical influence function Enhanced integrated framework, a global development program Enterprise interoperability framework Entertainment Industry Foundation, an American entertainment industry charity Estonian Internet Foundation, the operator of the .ee country code top-level domain of Estonia European industry federation, a type of trade union European Internet Foundation of the European Parliament European Interoperability Framework European Investment Fund, an agency of the European Union