She told BBC Radio 4’s Today programme she supported the campaign - mainly driven on social media - and said she believes the party resort is "absolutely not safe".
"And if you go and report something that’s happened to you, you’re either laughed at, as far as I can tell, or, in the worst case, something like what’s happened to my daughter may happen," she said.
The woman’s 19-year-old daughter told local authorities she was gang raped by up to 12 Israeli tourists in a hotel room on July 17, while she was working on the island.
But she was later arrested after police accused her of withdrawing her accusation 10 days after the alleged attack.
Pressure is now mounting on Cypriot authorities to reassess the case.
Her mother said the woman was experiencing post-traumatic stress disorder, hallucinations and sleeping for up to 20 hours a day as a result of the condition hypersomnia, apparently brought on by her treatment by police.
During her five-month trial, the Briton claimed she had been forced to change her account under pressure from Cypriot police, telling the judge she was “scared for my life”.
On Monday (30 December) she was ruled by a judge to have wilfully indulged in public mischief.
The teenager has been prevented from leaving Cyprus since July and could face up to a year in prison and a £1,500 fine when she is sentenced on 7 January.
As a result of the outcry, the Foreign Office has described the conviction as "deeply distressing" and pledged to raise the issue with Cypriot authorities.
A GoFundMe page to help with legal costs has also raised more than £115,000.
Several senior legal figures in Cyprus have signed a letter written to the attorney general Costas Clerides asking him to intervene in the case, including former justice minister Kypros Chrysostomides.
Chrysostomides said the teenager had "already suffered a lot" and he expects her sentence will be "very lenient".
However, the Cypriot government has said it has "full confidence" in its justice system and courts.
Clerides said he could not suspend the trial because the Briton had levelled "grave accusations" against police investigators that had to be adjudicated in court.
