Langtry is an English surname of habitational origin which derives from three settlements in Devon, Oxfordshire, and Lancashire called Langtree, from the Old English lang, long ‘long’, ‘tall’ + treow ‘tree’.
Notable Langtrys include:
Henry Langtry (1841–1892), English cavalry colonel
Joseph Langtry (1805–1862), Royal Navy captain
John Langtry (1834–1906), M.A., D.C.L., member of the Anglican Church in Canada
Albert P. Langtry (1860–1939), Secretary of the Commonwealth of Massachusetts, U.S.A.
Lillie Langtry (1853–1929), born Emilie Charlotte Le Breton, renowned British actress
Jeanne Marie Langtry Malcolm (1881–1964), illegitimate daughter of Lillie Langtry
Henry V.M. Langtry (1869–1935), British Army lieutenant-colonel
Joe Langtry (1880–1951), Australian politician
J.M. Langtry (1894–1971), British footballer and technical adviser on shipbuilding
Roberta Langtry (1916–2005), Canadian philanthropist
James I. Langtry (born 1939), government official and educator
Brian Langtry (born 1976), lacrosse player for the Colorado Mammoth and the Denver Outlaws
Arthur Langtry (the Merlin), a fictional character in Jim Butcher's novel series The Dresden Files