Adel Osseiran (Arabic: عادل عسيران; 5 June 1905 – 18 June 1998), also transliterated Adil 'Usayran or Adil Osseyran, was a prominent Lebanese statesman, a former Speaker of the Lebanese Parliament, and one of the founding fathers of the Lebanese Republic. Adel Osseiran played a significant role at various points in the history of modern Lebanon, such as the struggle for independence (1943), the mini-civil war of 1958, and the Lausanne Conference for Peace (1984).