Apostol Mărgărit or Apostolos Margaritis (5 August 1832 in Avdella – 19 October 1903 in Bitola) was an Aromanian school teacher and writer.

In 1862, Mărgărit became a school teacher in Vlaho-Clisura, near Grevena and taught the children in Greek, but also in Aromanian.

There were several assassination attempts on him: he was stabbed with a dagger in Salonika, thrown twice in the Vardar River and shot while in the Ohrid Mountains.

He was eventually sent to prison, but managed to escape and settled in Bucharest, where he obtained support from the Romanian monarch.

Under this position, Mărgărit founded many of the Romanian schools of Macedonia and Albania sometimes along with French priest Jean-Claude Faveyrial.