Women are paid 16.2% less than men on average across the EU, according to figures released by the European Commission.
The figures, released to coincide with Equal Pay Day, show that women would need to work an extra 59 days a year in order to match the average male salary.
The gap has narrowed slightly since last year, when the figure was 17%.
At 13.9%, Ireland’s gender pay gap is better than the EU average but is still wider than nine other countries.
Slovenia has the smallest pay gap at 0.9%, while Estonia has the largest at 27.7%.
The gender pay gap in Germany is 22.3%, in the United Kingdom it is 19.5% and is 5.3% in Italy.