Scotland Yard said Josh Clemence, 18, was charged with one count of attempted murder and one count of grievous bodily harm with intent, in relation to two stabbings in Hyde Park on 19 July.
Both male victims were taken to hospital and later discharged.
Three people, including a police officer, were stabbed during the disorder at the central London park. A second officer suffered injuries from a flying bottle as police tried to contain aggressive crowds.
J Clemence, from west London, is also charged with possession of a knife, and class A drugs with intent to supply and a further two counts of handling stolen goods.
More images of people police want to talk to in connection with widespread disorder close to London's Hyde Park have been released.
Anyone who knows the identity of those pictured is asked to call the Met Police Investigation Team or Crimestoppers.
Officers had been policing the park from 15:00hrs on Tuesday, 19 July, after a large number of people gathered for a spontaneous water fight. Additional officers were called to assist as the crowds grew to around 2,000 people.
A member of the public was filmed being tackled to the ground and stabbed during the 'riot' - as hundreds of others fled in horror.
A police officer was stabbed and another was smashed in the head with a bottle last night after a 'water fight' in Hyde Park exploded into violence.
Two members of the public were also knifed during the 'riot', which took place in the famous London park on the hottest day of the year.
This morning, footage emerged appearing to show one of the victims being tackled to the ground and stabbed in the middle of the street.
In the video, posted on Twitter, the man can be seen writhing around on the ground as he is attacked by two thugs - just feet away from a red double decker bus.
Moments later, the attackers run away, leaving him clutching his stomach in pain.
Bystanders watched in horror yesterday as officers were pelted with bottles and other missiles, while youths reportedly chanted: "Black Lives Matter".
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