Eamonn O'Brien

Eamonn O'Brien may refer to:


 * Eamonn O'Brien (Gaelic football manager) (born 1960), former manager of Meath
 * Eamonn O'Brien (footballer) (born 1990), Irish football midfielder
 * Eamonn O'Brien (mathematician), mathematician in New Zealand
 * Eamonn O'Brien (politician), British Labour politician and leader of Bury Metropolitan Borough Council