He was found in the male toilets.
A man was found dead in Dublin Airport this morning.
According to independent.ie, he was found shortly after 11am, however his death is not being treated as suspicious.
It is believed he had an underlying health problem.
Spokeswoman for the DAA, Siobhan O’Donnell said: “It’s sad. We’ve saved 26 lives thanks to our defibrillator programme in the past number of years so it’s really sad to hear this because he was on his own.
“It’s hard for our colleagues when that happens,” she added.
No other details have been released.
