Leopold Stanisław Kronenberg (born 24 March 1812 in Warsaw, Poland, died 5 April 1878 in Nice, France) was a Polish banker, investor, and financier, and a leader of the 1863 January uprising against the Russian Empire.
His father Samuel Eleazar Kronenberg (1773–1826) was a native of Wyszogród who led a small bank in Warsaw.
They had six children: Stanisław Leopold (1846–94), entrepreneur; Władysław Edward (1848–92), musician and philanthropist; Leopold Julian (1849–1937), banker; Tekla Julia (1851–52); Maria Róża (1854–1944)—wife of Karol Zamoyski, and subsequently of Gustaw Taube—hostess of a famous Warsaw literary salon; and Rozalia (born 1857), wife of Aleksander Orsetti.
From 1839 to 1860, having obtained the concession of the tobacco monopoly in the Kingdom of Poland, Kronenberg amassed a considerable fortune which he used to develop the country's economy: sugar industry, construction of railways, commercial activities, and banking sectors.
Between 1868 and 1871, he built in Warsaw a monumental home, Kronenberg Palace, which burned in September 1939 and was dismantled in the 1960s.