Farhad is one of the most famous and popular fictional characters among Persian speakers who has always been a symbol of pure and true love. Despite this, his personality is in an aura of ambiguity and correct information about him is not available. It seems that Farhad is a Parthian symbol who stepped into the world of stories to defend the Parthian culture against the Sasanids. His popularity in the minds of Iranians has caused even historians to think of him as a historical figure. In this article, the legendary or real character of "Farhad" has been examined with regard to Khosrow and Shirin by Nizami and available historical sources.