ABSTRACT Siti Hotijah, 2019, An Analysis of Speech Act: Perlocutionary in Joko Widodo's Speech 2014 based on Geoffrey Leech Perspective. Thesis, Tarbiyah Faculty, English Teaching Learning Program (TBI), State Islamic Institute (IAIN) of Madura. Advisor: Mulyadi, S.S., M. Pd. Key Words: Speech Act, Perlocutionary , Joko Widodo's speech. Speech act is pragmatic element that involves th…