Sixteen people were arrested for driving while under the influence of drink or drugs on Christmas Day - up from arrests for Christmas Day 2018.
Gardaí described the figures as a huge increase and a worrying trend.
Since the Christmas Road Safety Campaign began on November 29, there have been more than 650 drivers arrested on suspicion of intoxicated driving.
There is an increased Garda presence on the roads over the Christmas period.
In a statement, gardaí said:
"Too many families have lost loved ones to drink and drug driving. An Garda Síochána are pleading with people to stop taking risks, make the right decisions and never ever drive while under the influence of drink or drugs.
"To all persons driving throughout the Christmas period, please be responsible and safe. Do not put yourselves or other road users at risk. Operate within the applicable speed limits and never drive under the influence of alcohol or drugs."