Jei

Jei or JEI may refer to:
 * Jamaat-e-Islami
 * Jane Castro (born 1982), American entertainer
 * Islamic Republic of Iran (Jomhuri-ye Eslāmi-ye Irān)
 * Journal of Electronic Imaging
 * Yei language, spoken in Papua New Guinea
 * Jei, a character in Usagi Yogimbo
 * Jei, member of South Korean girl group Fiestar
 * JEI Corporation, a South Korean educational company