None of the 42 people had permission to be in the country.
The Justice Minister says 42 Brazilians have been deported from the country since June.
In a post on social media, Jim O'Callaghan says it includes 15 people serving prison sentences.
He added that none of the 42 people had permission to be here.
He said the deportations took place on commercial flights.

Further Increase Expected In Number Of Landlords Leaving Property Market, As Price Of Three-Bed Semi Rises In Kildare
Over 1,700 Garda Checkpoints In Operation Over Christmas Period, With Naas RPU Detecting Multiple Speeding Motorists
€1.2m Approved For Zipline And High Ropes Adventure Centre At Donadea
Christmas Appeal To Adopt Dogs As Euthanasia Figures Rise
Speed Enforcement To Increase In Kildare With 21 New Camera Zones To Be Rolled Out In January
Over 400 Motorists Caught Speeding So Far Today, Including A Driver In Kilcock
Transport Minister In Discussions With Irish Rail About Extending Late-Night Trains Beyond Christmas
Tadhg And Mary Should Be Looking Forward To Christmas, Say Gardai As Fresh Appeal Launched