You may have noticed people walking around with straw hats and ruffled blouses today and wondered what is going on.
Well there are a number of in-person and online events taking place to mark Bloomsday.
Fans of Ulysses are celebrating the work of James Joyce with all different types of traditions.
We sent Newstalk reporter Josh Crosbie off to a bellringing rehearsal in Dublin to find out how church bells are linked to Ulysses.
