Archduchess Maria Isabella of Austria, Princess of Tuscany[citation needed] (21 May 1834 – 14 July 1901), was an Archduchess of Austria and Princess of Tuscany by birth and Countess of Trapani by marriage to her uncle Prince Francis, Count of Trapani.

Maria Isabella was born in Florence, Grand Duchy of Tuscany, as the daughter of Leopold II, Grand Duke of Tuscany and his second wife, Princess Maria Antonia of the Two Sicilies.

[citation needed] Maria Isabella married her uncle Prince Francis, Count of Trapani, youngest son of Francis I of the Two Sicilies and his wife Maria Isabella of Spain, on 10 April 1850.

Maria Isabella and Francis had six children: On 14 July 1901, Maria Isabella died in Lucerne, Switzerland.