Prashad Sothilingam, 25, of Edghill Road, Mitcham, is accused of murdering 26-year-old Neel Croos in Holborn Way, Mitcham, on 23 November, police said.
Mr Croos sustained a serious head injury in a fight involving a large number of men and later died. Two other men were also treated in hospital.
Mr Sothilingam was the seventh man arrested over the death and appears at Wimbledon Magistrates' Court on Monday.
He is also charged with the attempted murder of a 29-year-old man on the same day, and charged with violent disorder and possession of an offensive weapon.
Previously, police arrested a 21-year-old man on suspicion of attempted murder.
Five other men, aged between 21 and 40, were also held on suspicion of violent disorder.
All six have been bailed until a date in early December.
A man has been charged with murder after a street brawl in south London.