Emir (, (Feminine: Emira, ), meaning "commander", "general", or "prince"; also transliterated as Amir, Aamir or Ameer) is a title of high office, used throughout the Muslim world. Emirs are usually considered high-ranking Sheikhs, but in monarchic states the term is also used for Princes, with "Emirate" being analogous to a sovereign principality.

European Market Infrastructure Regulation (EMIR) is charged with increasing the stability of the over-the-counter (OTC) derivative markets throughout the European Union.