Esteghlal Football Club (استقلال), commonly known as Esteghlal (meaning 'The Independence'), is the oldest Iranian professional football club based in Tehran that competes in the Persian Gulf Pro League. The club was founded in 1945 as 'The Cyclists' ( دوچرخه‌سواران, Dočarxe-Savârân) and was known as Tâj (تاج; meaning 'The Crown') between 1949 and 1979. The club is part of the multisport club Esteghlal Athletic and Cultural Company of Iran. They were the first team to reach 1,000 points in the Persian Gulf Pro League.

After the 1979 revolution, the club's women's team was dissolved and the progress of women's football in Iran was tied to politics. Since the 1973–74 season, Esteghlal has played its home games at the Azadi, which has a seating capacity of 78,116, though it can hold more people during important matches. Esteghlal set an attendance record for an Asian Club Championship match in 1999 when 121,000 supporters watched their final against Júbilo Iwata in Tehran.