The results, which were declared this afternoon, show that 33,364 voted in favour, with 34,347, voted against the proposal – 983 in the difference.
It follows a nail-biting count in the plebiscite today which saw the number of yes votes match the no votes throughout the six-hour count.
It was nip and tuck until the last hour of the count when the ‘no’ vote edged ahead.
With this vote, Cork has joined Waterford in rejecting the plebiscite.
Meanwhile, Limerick voted in favour of the proposal with 52.4 support.