Robert O'Callaghan

Lieutenant-General Sir Robert William O'Callaghan GCB (October 1777 – 9 June 1840) was a British Army officer.

Military career
Born the son of Cornelius O'Callaghan, 1st Baron Lismore, O'Callaghan was commissioned into the 128th Regiment of Foot in 1794. He served in the Peninsular War and temporarily commanded a brigade within the 2nd Division between January and July 1813 and permanently commanded a brigade of the 2nd Division between February and April 1814. He went on to command the 13th Brigade in France in 1815, the 3rd Brigade between 1815 and 1817 and the 7th Brigade in 1818. He served with the Army of Occupation in France and then became Commander-in-Chief, Scotland in 1825 and Commander-in-Chief of the Madras Army in 1831 before retiring in 1836. He was an Irish Member of Parliament for Bandonbridge from 1798 to 1800. He died unmarried in London.

He was also Colonel of the 97th Regiment of Foot and then of the 39th Regiment of Foot.