Senator O'Reilly

Senator O'Reilly may refer to:


 * Joe O'Reilly (born 1955), Senate of Ireland
 * Patrick O'Reilly (Longford politician) (1911–2003), Senate of Ireland
 * Pauline O'Reilly (fl. 2010s–2020s), Senate of Ireland
 * Patrick O'Reilly (Cavan politician) (1927–1994), Senate of Ireland