Students at Trinity College Dublin have voted to stay affiliated with the Union of Students in Ireland after a four-day referendum.
The final tally showed that 1,498 students voted to remain affiliated with the Union of Students in Ireland, while 829 students wanted their Students' Union to leave the group.
USI President John Logue said he was delighted with the final result.
"It was a comprehensive result and I am delighted that Trinity students have decided to stay with the union," he said.
Later in the academic year, students in University College Dublin will have a similar referendum on whether they should leave the USI. Mr Logue said he hopes there is a similar result in UCD.
"We are only ten weeks away from a very important budget and I hope students in UCD realise that we have better representation if we are all part of one union."