A vehicle was caught travelling at 117km/h in a 50km/h zone on the N22 at Farranfore on National Slow Down day.
In total, Gardaí detected 920 drivers nationwide travelling over the speed limit in the operation which ended at midnight.
The initiative was to promote safer driving and reduce speed-related collisions nationwide, coinciding with the first full week of schools reopening across the country.
An Garda Síochána is reminding motorists to think about the consequences of their action on the roads.