Brown, 37, was given an eight-month suspended sentence at London's Southwark Crown Court over the attack on Abraham Diaw at the Tape nightclub in February 2023 that lasted about 20 seconds.
Diaw was hit twice in the head with a bottle, which was then swung twice more at him in what prosecutors described as "a vicious and unprovoked attack".
The R&B star and his vocal coach Omololu Akinlolu, 40, pleaded guilty to a charge of affray in July, having denied more serious charges of attempting to inflict grievous bodily harm and assault causing actual bodily harm.
Judge Tony Baumgartner said: "This was serious, public violence. In your case, Brown, it involved the repeated use ... of a bottle, including twice striking Diaw to his head."
The judge told Brown: "Your fame, commercial success and professional standing do not entitle you to special treatment - the law applies equally to everyone."
But Baumgartner said he could suspend Brown's sentence for 12 months, meaning he will not go to prison unless he commits another offence in that period.
Akinlolu was also spared an immediate jail sentence.
"Violence will not be accepted on the streets of London," Detective Chief Superintendent Christina Jessah from the Metropolitan Police said in a statement.
"Regardless of an individual's profile or status, we will pursue those responsible and work tirelessly to bring them before the courts."
Brown and Akinlolu stood up and faced one another and clasped hands in front of a packed public gallery after the judge concluded his sentencing remarks before walking out of the glass dock.
Brown, winner of Grammy awards for best R&B album in 2011 and 2025, has previously admitted other violent offences in the United States, having been charged with assaulting his then-partner singer Rihanna in 2009, with a photo of her bruised face making headlines around the world.
Prosecutor Heidi Stonecliffe said Brown pleaded guilty to the 2009 assault of Rihanna and was sentenced to five years' probation.
He also admitted a 2013 assault on a fan he was accused of punching when he asked for a photograph.
Brown remains hugely popular and has sold tens of millions of records worldwide, with dozens of fans queuing outside court from about 7am, about an hour before the building opened.
His lawyer Sallie Bennett-Jenkins said Brown was profoundly sorry for the incident and described him as "a dedicated, loving and loyal father to four children".
"This was an ugly and unattractive incident, we would be the first to accept," she added.
"It was, however, an incident that was very short-lived."
Brown thanked the judge before leaving the dock and nodding towards about two dozen of his supporters in the public gallery.
Other fans who gathered outside the building cheered as Brown left and went into a waiting car.
Brown appeared to stop to sign an autograph and even blow a kiss to a fan.
Brown was arrested in May 2025 having returned to the UK for the first time since the attack and was initially denied bail, throwing his worldwide "Breezy Bowl XX" tour into doubt.
But Brown was eventually released after promising to pay a 5 million pound ($A9.5 million) security fee, allowing the tour to go ahead.
with PA
