FIFA plans to ban the pre-revolutionary Iranian Lion and Sun flag and related apparel from World Cup stadiums during the 2026 tournament. The flag, used before the 1979 revolution, is associated with the Iranian diaspora and anti-government sentiment.

FIFA referred to its stadium code of conduct when questioned about the flag's presence at venues. The code prohibits political or discriminatory materials, reinforcing the planned ban. The 2022 World Cup in Qatar saw similar restrictions enforced.

Fans carrying the flag or anti-government messages were previously blocked from entering some stadiums during the 2022 tournament. The ban reflects FIFA's stance on maintaining neutrality within competition venues.