Sean is a male given name of Irish origin. Its correct Irish spelling is Seán or Séan, while an older form is Seaghán or Seaġán. It is the Irish spelling of the Biblical name John. The Norman French Jehan is another version. Seán is the source for English versions such as Shaun, Shawn and Shon. Séan reflects the Ulster pronunciation and is anglicized Shane, Shaine or Shayne.