Around 13,000 litres of beer, 225 litres of Asti Martina and 7 litres of Polish Mead were discovered at Rosslare Europort.
It followed the search of an Irish registered truck that had disembarked a ferry from Dunkirk, France.
The smuggled alcohol has an estimated retail value of more than €55,000.
Separately, almost 3 kilos of ecstasy worth over €90,000 have been seized by revenue officers at a premises in Athlone yesterday.
The drugs were discovered in parcels labelled as 'children's toys' that originated in the Netherlands and were destined for an address in Dublin.