McIlhenny

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

• Don McIlhenny (born 1934), American football player
• Edward Avery McIlhenny (1872–1949), American businessman and Arctic explorer
• Edmund McIlhenny (1815–1890), American businessman and inventor of Tabasco sauce
• 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