Ambrosio Bernardo O’Higgins 1st Marquis of Osorno (c. 1720 – March 19 1801) born Ambrose Bernard O’Higgins (Ambrós Ó hUiginn in Irish) was a member of the O’Higgins family and an Irish-born Spanish colonial administrator. He served the Spanish Empire as captain general (i.e. military governor) of Chile (1788–1796) and viceroy of Peru (1796–1801). Chilean independence leader Bernardo O’Higgins was his illegitimate son.