Ligonier is a surname. Notable people with the surname include:
Edward Ligonier, 1st Earl Ligonier (1740–1782), British soldier and courtier Francis Ligonier (1693–1746), French-born British Army officer John Ligonier, 1st Earl Ligonier (1680–1770), British military officer Penelope Ligonier (1749–1827), English aristocrat and socialite