Count Xavier Branicki (in Polish: Franciszek Ksawery Branicki, in French: François Xavier Branicki), born 26 October 1816 in Warsaw, Poland, died 20 November 1879 in Assiut, Khedivate of Egypt, was a Polish nobleman, political exile and landowner who took French nationality.
He became a political writer, financier, art collector and philanthropist.
He was descended from a powerful magnate family with immense land holdings in the Duchy of Lithuania and in Ukraine, partly as a result, it is said, of a family connection with Catherine the Great.
He was a member of the close circle of Napoleon III.