The day is in commemoration of James Joyce and his famous novel which was published 100 years ago.
Events will take place across the country and in Dublin to mark Bloomsday.
Representatives from Ireland and France will also come together for a special celebration this afternoon to mark the event.
The Ulysses scheme named after James Joyce's famous novel which was published 100 years ago, celebrates the Joycean links between Ireland and France.
It provides funding to facilitate the exchange of innovative ideas and collaborative approaches between researchers working in Ireland and France.
Damien Henehan is the programme manager at the Irish research council says they are happy to celebrate the scheme.