Sami Zaatari is a British Muslim apologist and dawah activist based in the United Kingdom, recognized for his online videos and public debates defending Islam against Christian apologetics. He gained prominence through multiple online and in-person confrontations with David Wood and the Acts 17 Apologetics team, including a notable debate in Norfolk, Virginia, around 2011. Operating primarily on YouTube under his own channel, Zaatari produces content refuting biblical criticisms, promoting Salafi interpretations of Islam, and engaging in polemics with missionaries and ex-Muslims. He has authored articles for Islamic websites such as Islam21c and participated in broader dawah efforts, often emphasizing scriptural debates on topics like the divinity of Jesus and the Quran's preservation. His style is characterized as assertive and direct, appealing to a global Muslim audience seeking responses to Western critiques of Islam.