The proposal was given the go-ahead at a meeting of Ulster University's Students' Council on Tuesday.
The Ulster University has four campuses, one in Belfast, Coleraine, Jordanstown and Londonderry.
Each location has their own students' union.
Sinn Fein Senator Niall O Donnghaile said that he wanted to commend the union for their decision.
“This is a positive step forward and reflective of the growing interest in and demand from Irish speakers to carry out their daily routines through the Irish language," he said.
“It’s important that we continue to promote and increase the visibility of the Irish language; linguistic diversity, representing and reflecting languages, not least indigenous languages, are positive economic and social drivers."
Former Lord Mayor of Belfast O Donnghaile said that the move would benefit Irish speakers at the university.
“Irish speaking students are entitled to the same language rights as enjoyed by citizens who live their daily lives through the medium of English and should benefit from the universal advantages that will no doubt flow from this progressive move by the Students’ Union Council," he said.
“Sinn Fein will continue to support the campaign for Acht Na Gaeilge which includes rights and legal protections for Irish speakers in the north, just as exists elsewhere on these islands.”
Ulster Young Unionists have said that they will be opposing the erection of Irish language signs at Ulster University's Students' Unions.
The Ulster University has four campuses, one in Belfast, Coleraine, Jordanstown and Londonderry.
Each location has their own students' union.
Sinn Fein Senator Niall O Donnghaile said that he wanted to commend the union for their decision.
“This is a positive step forward and reflective of the growing interest in and demand from Irish speakers to carry out their daily routines through the Irish language," he said.
“It’s important that we continue to promote and increase the visibility of the Irish language; linguistic diversity, representing and reflecting languages, not least indigenous languages, are positive economic and social drivers."
Former Lord Mayor of Belfast O Donnghaile said that the move would benefit Irish speakers at the university.
“Irish speaking students are entitled to the same language rights as enjoyed by citizens who live their daily lives through the medium of English and should benefit from the universal advantages that will no doubt flow from this progressive move by the Students’ Union Council," he said.
“Sinn Fein will continue to support the campaign for Acht Na Gaeilge which includes rights and legal protections for Irish speakers in the north, just as exists elsewhere on these islands.”
Ulster Young Unionists have said that they will be opposing the erection of Irish language signs at Ulster University's Students' Unions.