Muireann is an Irish feminine given name, derived from the Irish Gaelic name Muirghealla, which means 'sea-white,' a reference to the waves of the sea. It is often anglicized to Muriel or Morag but retains its unique character as a traditional Irish name.
Muireann saw a spike in popularity in 2015 with five births that year, after a lull of seven years since the previous five births in 2008.