Darnella Frazier, now 18, was awarded the citation for her courage, the Pulitzer committee said.
Her film spurred protests for racial justice around the world and was used as evidence in the trial that convicted police officer Derek Chauvin.
The Pulitzers are the most prestigious journalism awards in the US.
The committee said they honoured Ms Frazier for “courageously recording the murder of George Floyd, a video that spurred protests against police brutality around the world, highlighting the crucial role of citizens in journalists’ quest for truth and justice.”
On May 25, 2020, George Floyd was murdered by a police officer during an arrest after a store clerk suspected he may have used a counterfeit $20 bill in Minneapoli in US. He was an African American man.
(BBC)