Sayfullo Habibullaevich Saipov (born February 8, 1988) was the perpetrator of the 2017 New York City Truck Attack. He drove a rented pickup truck into cyclists and runners for about one mile (1.6 kilometers) of the Hudson River Park's bike path alongside West Street from Houston Street south to Chambers Street in Lower Manhattan, New York City. The vehicle-ramming attack killed eight people, six of whom were foreign tourists, and injured eleven others.

Saipov was born in Tashkent, Uzbekistan while it was part of the Soviet Union on February 8, 1988. In 2005, he graduated from a professional college and studied at the Tashkent Financial Institute from 2005 to 2009, before working as an accountant.

Early reports suggested Saipov was "self-radicalized". John Miller, the deputy commissioner of the New York Police Department, said Saipov did it in the name of Islamic State of Iraq and the Levant (ISIL), a jihadist militant group fighting in the Iraqi and Syrian civil wars, and appeared to have followed "almost exactly to a T" the group's advice on social media on how to carry out vehicular attacks.