Tirgan refers to an ancient Iranian festival. There are various legends concerning its origins. One legend describes how Iran and Turan, two long-standing enemies, decided to declare peace by drawing the boundaries between the two empires. Arash, the best archer in the Iranian army, was chosen to ascend Mount Damavand to shoot an arrow, with the landing location determining the boundary. Iranians watched in hope as the arrow flew from dawn until noon, expanding the boundaries of Iran beyond all expectations. What resulted was the inclusion of many diverse cultures throughout the territory of Iran. Tirgan became a celebration of that diversity.

Tirgan Festival promotes Iranian arts and culture, while making a concerted effort to feature contributions from Iranians of all ethnicities, backgrounds, and cultural disciplines. At Tirgan festivals, local as well as internationally renowned artists and performers unite to celebrate Iranian culture and heritage.

The Tirgan Festival is organized by the PACC- Persian Arts & Cultural Communities, for Art and Culture, a non-profit, non-partisan, and non-religious organization, registered under the Maryland State of USA.