thumb|[[Souvlaki grilling at the 2011 Greek festival in Piscataway, New Jersey on May 15, 2011]]
A Greek festival or Greek Fest is an annual celebration of Greek culture presented by many ethnic Greek American communities and organizations in the United States, Canada, Australia, New Zealand, the United Kingdom, Germany, Norway, the United Arab Emirates, Singapore, Argentina, Brazil, and other countries with Greek populations, particularly Greek Orthodox churches. Typically, these events are intended for attendance by the general public.
Attendees can sample Greek music, movies, cuisine, and dance, typically performed in traditional dress. Such events are often fundraisers for Orthodox churches of the Greek Archdiocese.