The
2005 Chilean parliamentary election took place on December 11, 2005, in conjunction with the
presidential election. All of the 120 seats in the
Chamber of Deputies were contested, while 20 out of 38 seats in the
Senate were up for election (even-numbered
regions and the
metropolitan region). Deputies serve for a period of four years, while senators serve for a period of eight years. Reelection is permitted.