Families in The Oireachtas - O

O

• Mary Ann O'Brien: Ind Senator 2011–
  • her first cousin-in-law John Magnier (born 1948): Ind Senator 1987–1989
• Richard O'Connell (1892–1964): CnaG TD Limerick 1923–1932
  • his nephew Tom O'Donnell (born 1926): FG TD Limerick East 1961–1987, MEP Munster 1979–1989
    • Tom's nephew Kieran O'Donnell (born 1963): FG TD Limerick East 2007–
• O'Connor, see Connor
• O'Higgins, see Sullivan
• Pierce Mahony (1792–1853): Repeal MP Kinsale 1837
  • his grandson Pierce O'Mahony (1850–1930): IPP MP North Meath 1886–1892
    • his son Dermot O'Mahony (1881–1960): CnaG TD Wicklow 1927–1938
• Donogh O'Malley (1921–1968): FF TD Limerick East 1954–1968
  • his nephew Desmond O'Malley (born 1939): FF/PD TD Limerick East 1968–2002
    • Desmond's daughter Fiona O'Malley (born 1968): PD TD Dún Laoghaire 2002–2007, Senator 2007–2011
    • Desmond's cousin Patrick O'Malley (born 1943): PD TD Dublin West 1987–1989
    • Desmond's first cousin Tim O'Malley (born 1944): PD TD Limerick East 2002–2007
• John M. O'Sullivan (1891–1948): FG TD Kerry/Kerry North 1923–1943
  • his brother Timothy O'Sullivan (1879–1950): IPP MP East Kerry 1910–1918
  • their cousin Eugene O'Sullivan (1879–1942): IPP MP East Kerry 1910
• Timothy O'Sullivan (1899–1971): FF TD Cork West 1937–1954, Senator 1957–1959
  • his niece Peggy Farrell (1920–2003): FF Senator 1969–1973