Emma West, 34, of New Addington, London, appeared before magistrates today, after being arrested and remanded in custody on Monday night following complaints made to the police.
Footage of the incident, which spread quickly on the web, allegedly showed a woman with a child on her lap, addressing fellow passengers.
A British Transport Police spokesman said: ‘I can confirm that Emma West (34) of New Addington was charged with Racially Aggravated Section 4a on Monday.
‘She was remanded in custody overnight and is due to appear at Croydon Magistrates Court later (today, Tuesday 29 November).
‘This is in relation to an incident onboard a Croydon Tramlink.’
Officers from the BTP launched an investigation after it was viewed thousands of times via Twitter.