Sediq Afghan (Dari-Persian: صدیق افغان ) is an Afghan mathematician. He is the founder and head of the World Philosophical Math Research Center in Kabul, Afghanistan. He is also a political activist. He had a prominent role in protests in Kabul about Afghanistan- and Islam-related issues, including an anti-American protest in 2003, a hunger strike to protest beatings of journalists by Afghan security officers in 2006, and another one to protest the 2008 Danish Muhammad cartoons.