A new report estimates that losses due to counterfeiting and piracy totalled €909m in Ireland last year.
The European Union Intellectual Property Office (EUIPO) said the total losses are equivalent to 5.4% of sales in the 11 sectors under review.
These include cosmetics and personal care; clothing, footwear and accessories; sports goods; toys and games; jewellery and watches; handbags and luggage; recorded music; spirits and wine; pharmaceuticals and pesticides and smartphones.
EUIPO said its analysis shows the total value of the lost sales in Ireland is equivalent to €192 per Irish citizen per year.
The report said that lost sales in the Irish clothing, footwear and accessories sector due to counterfeiting are estimated at around €323m a year, or around 9.2% of sales.
And the estimated loss for the cosmetics and personal care sector in Ireland is €98m, or 14% of all sales in the sector.
Today's EUIPO report estimates that the total losses due to counterfeiting and piracy in the European Union reaches €60 billion each year.
This puts the overall losses at 7.4% of all sales across the 11 sectors.
EUIPO said given that legitimate manufacturers produce less than they would have had in the absence of counterfeiting, it estimates that up to 468,000 jobs are directly lost in these sectors across the EU.
The executive eirector of EUIPO, Christian Archambeau, said that Europe depends on industrial sectors for its growth and job creation.
"But our research work shows how counterfeiting and piracy can put growth and jobs at risk.
"We carry out this analysis, and our wider body of research, to support policy makers in devising solutions to this problem, and to help make EU consumers aware of the economic consequences of counterfeiting and piracy at a wider level," he added.
