Inflation is estimated to have risen by 8.6% in the year to September.
These are Europe-wide figures with Ireland's official inflation rate to be confirmed in the coming days by the Central Statistics Office.
In August, Eurostat estimated Ireland's inflation rate to be at 9%.
Prices are rising at a slower rate than in Europe, where inflation is estimated to have gone up by 10% in the last 12 months.
Three out of 19 countries in the Eurozone had a lower rate of inflation than Ireland, with France having the lowest at 6.2%.
Energy prices, housing and food inflation are regularly cited as the main drivers behind the cost of living rising in Ireland.