The Quick Pick ticket matched 5 numbers in last night's draw
The lucky winner purchased the ticket in the rural village of Conna.
He or she was just one number short of scooping the entire jackpot worth just under €25 million.
The person has yet to claim their winnings, and the National Lottery is appealling to the people of Conna and the wider East Cork area to check their EuroMillions Quick Pick tickets from last night.