Richard Pennefather may refer to: Richard Pennefather (Cashel MP, died 1777), Irish MP for Cashel Richard Pennefather (Cashel MP, died 1831), Irish MP for Cashel Richard Pennefather (judge) (1772–1859), Irish judge Richard Pennefather (civil servant, born 1806) (1806–1849), Under-Secretary for Ireland Richard Pennefather (colonial administrator) (c. 1828–1865), British colonial administrator in Canada and Ceylon Sir Richard Pennefather (civil servant) (1845–1918), Receiver of the Metropolitan Police Richard Pennefather (Australian politician) (1851–1914), lawyer and politician in Western Australia
See also Richard Pennefather Rothwell (1836–1901), Canadian-American civil, mechanical and mining engineer