All traffic drives on the left in Ireland.
By law, drivers must enter a roundabout by turning to the left. Drivers must treat the roundabout as a junction and give right-of-way to traffic already on it (coming from the right). If the driver is unfamiliar with driving on the left hand side of the road, roundabouts may pose a particular risk (the driver should take extra care).
The information on this website according to Article 8(1) of the road safety directive (Directive 2015/413/EU) is provided by the national authorities in the country concerned. In the event of any conflict between the provided data and the rules in effect in a given country, the latter take precedence. The data are meant purely as a documentation tool and the Commission does not assume any liability for their content or their accuracy.