Andrés Pío Bernardino Chadwick Piñera (born 2 January 1956) is a Chilean right-wing politician and lawyer, member of the Independent Democrat Union (UDI) party.
Chadwick was elected deputy for the District #33 in 1989, and was re-elected in 1993.
In 1997, he was elected senator for the 9th Circunscription of the VI Región del Libertador General Bernardo O'Higgins, and was re-elected in 2005 again.
On 18 July 2011 he became Minister Secretary General of Government.
He was appointed Interior Minister on 5 November 2012 and his term ended on 11 March 2014.