Sheeran is an Irish surname.
According to a few sources, the surname is a reduced form of O’Sheeran which is an Anglicized form of Ó Sírín [2] or Ó Síoráin [3] meaning ‘descendant of Sírín/Síorán'.
Derived from the personal name Síorán, from a diminutive of síor meaning ‘long-lasting’.