New figures from the Central Statistics Office show that the seasonally adjusted unemployment rate in October rose to 5%, up from 4.2% the same month last year.
The CSO also revised the unemployment rate for September from 4.7% to 5.1%.
The unemployment rate for both men and women was 5% in October, the CSO added.
Meanwhile, the monthly youth unemployment rate was 13.4% in October, up from a revised rate of 13.3% in September.
Today's figures show that the seasonally adjusted number of people unemployed was 147,400 in October, compared with 149,100 in September.
There was an increase of 26,800 in the seasonally adjusted number of people unemployed in October of this year compared with October 2024, the CSO added.
Commenting on today's figures, Kate English, Chief Economist at Deloitte Ireland, said they paint a mixed picture of employment in Ireland.
"The good news is that the unemployment rate remains relatively low at 5% in October 2025. What needs to be watched closely is that it is slowly edging upwards, with an increase of 26,800 persons unemployed over the 12 months to October," Kate English said.
She said the increase in youth unemployment and the revision to youth unemployment last month also require further attention - with October seeing the highest rate of youth unemployment since June 2021.
48,400 peopled aged 15-24 are unemployed, an increase of 23% on this time last year, she added.
"This is similar to trends we have seen across the world of rising youth unemployment. The Federal Reserve has recently mentioned this in the US context, noting difficulties for graduates finding employment," she said.
"There are several potential reasons for this trend in Ireland. Does it reflect weaker demand as companies continue to weigh up the impact of tariffs? Other indicators continue to suggest economic resilience so perhaps not. Another factor may be demographic changes," she added.
