The supposed assault was said to have occurred in a lodging in the prominent occasion resort of Ayia Napa.
The young men - the vast majority of whom are matured somewhere in the range of 16 and 18 with the exception of one, who is 15 - have not yet entered any requests.
They have been remanded in guardianship and police have been given a further eight days to examine.
The British lady reached police in the early long stretches of Wednesday morning saying she had been assaulted in a lodging in Ayia Napa. Soon thereafter police captured the 12 adolescents.
During the consultation on Thursday morning, judge Tonia Nicolaou affirmed the names of those captured before columnists were advised to leave the court because of the age of one think, the 15-year-old kid.
The guardians of a few of those captured flew from Israel to the court hearing in Paralimni, close to the Ayia Napa resort.
The suspects were driven through the court building cuffed to one another two by two.
A few guardians yelled messages of help and grasped them.
The mother of one of the suspects told the BBC her child had done nothing incorrectly.
An Israeli ambassador was available in court and said they would screen however not meddle with the case.
The Foreign Office has said it is supporting a lady who was ambushed and says it is in contact with neighborhood police.
The town of Ayia Napa is a hotel mainstream with more youthful travelers because of its energetic nightlife.