Meaning of Last Name

*King Leary or Lóegaire mac Néill, an Irish king *Denis Leary (frequently misspelled as 'Dennis Leary'), an American actor, comedian, writer and film director *Michael Leary, an association football player for Barnet F.C. *Paul Leary, an American musician and record producer *Timothy Leary, an American psychologist, writer and counterculture icon