Patricio Walker Prieto (born 28 April 1969) is a Chilean politician. He was President of the Senate between 11 March 2015 and 15 March 2016. He was member of the Senate between 2010 and 2018. From 2007 to 2008 Walker was President of the Chamber of Deputies of Chile. He was member of the Chamber of Deputies between 1998 and 2010. Walker is member of the Christian Democratic Party.