Members of the public are being invited to witness the results of the referendums at Dublin Castle today.

Some 2,000 people will be able to see the results unfold on a big screen, which will be erected in the courtyard of the castle.

Admission to the viewing area will be on a first-come first-served basis from 9:45am.

Dublin City Councillor for Fianna Fáil, Paul McAuliffe, says he hopes the passing of a Yes vote will be celebrated on the grounds of the National Count Centre.

Delighted to announce that the upper court yard in Dublin Castle will be open tomorrow for people to hear the #MarRef result!

— Simon Harris TD (@SimonHarrisTD) May 22, 2015

Meanwhile, the CEO of Amnesty International Ireland says regardless of the outcome in the same-sex marriage referendum we are already 'a different Ireland'.

Colm O'Gorman says that the discussions that have taken place in the run-up to the referendum have already transformed our society.