Petty-Fitzmaurice oder Petty-FitzMaurice is de Familiennaam von
Charles Petty-Fitzmaurice, 7. Marquess of Lansdowne (1917–1944), brietschen Eddelmann, Charles Petty-Fitzmaurice, 9. Marquess of Lansdowne (* 1941), brietschen Peer, Emily Petty-Fitzmaurice, 8. Lady Nairne (1819–1895), brietsche Peeress, George Petty-FitzMaurice, 8. Marquess of Lansdowne (1912–1999), brietschen Politiker un Peer, .