McIlhenny

McIlhenny or McElhenny is an Irish surname commonly found in Donegal and Derry. They are a Sept of the Cenel Eogain race, son of Niall high king of Ireland. In Gaelic the name translates "servant of Saint Canice". Notable people with the surname include:


 * Bernice McIlhenny Wintersteen (1903–1986), American art collector, president of the Philadelphia Museum of Art (1964–1968)
 * Don McIlhenny (born 1934), American football player
 * Edmund McIlhenny (1815–1890), American businessman and inventor of Tabasco sauce
 * Edward Avery McIlhenny (1872–1949), American businessman and Arctic explorer
 * Henry Plumer McIlhenny (1919–1986), American art collector
 * John Avery McIlhenny (1867–1942), American businessman, Rough Rider, and politician
 * Paul C. P. McIlhenny (1944–2013), American businessman and conservationist
 * Walter Stauffer McIlhenny (1910–1985), American businessman and World War II Marine

McElhenny

 * Hugh McElhenny (1928–2022), American football player
 * Rob McElhenny (1977–present), American actor and writer best known for It's Always Sunny in Philadelphia

McElheny

 * Josiah McElheny (born 1966), American artist
 * Victor McElheny (born 1935), American science writer