Bernardo Leighton Guzmán (August 16, 1909, Negrete, Bío Bío Province – January 26, 1995, Santiago) was a Chilean Christian Democratic Party politician and lawyer.
He served as minister of state under three presidents over a 36-year career.
Exiled as a critic of Augusto Pinochet's dictatorship, he was targeted for assassination by Operation Condor.