The Restaurants Association of Ireland is calling for the law to be changed, branding it 'unacceptable' in a multi-cultural and multi-religious society.
They are citing the exceptions made for certain venues which have been granted a licence to serve alcohol on Good Friday, including some greyhound stadiums.
It comes as a new survey by Ignite finds that one in three people say the ban should be lifted.
Adrian Cummins is chief executive of the Restaurants Association of Ireland.
“The restaurants that have to close on Good Friday because of the (ban on the) sale of alcohol – their business model doesn't justify themselves to open” he said.
“Those restaurants that do close – the staff have a day off and they can't earn any wages on this day”.
“The law needs to be changed, especially for next year, 2016 – our centenary celebrations – we need to get this law changed as quickly as possible” he added.