Pantaleon Diaz Alvarez (born January 10, 1958) is a Filipino politician serving as the Representative of Davao del Norte's 1st district since 2016, previously holding the position from 1998 to 2001. He served as the Speaker of the House of Representatives from 2016 to 2018. He also served as the Secretary of Transportation and Communications in the Cabinet of President Gloria Macapagal Arroyo from 2001 to 2002.