Prince Louis Maria of Bourbon-Two Sicilies, Count of Trani (1 August 1838, Naples – 8 June 1886, Paris) was the eldest son of Ferdinand II of the Two Sicilies and his second wife Archduchess Maria Theresa of Austria.
His maternal grandparents were Archduke Charles, Duke of Teschen and Princess Henrietta of Nassau-Weilburg, Duchess of Teschen.
The Duke of Teschen was a son of Leopold II, Holy Roman Emperor.
The Duchess of Teschen was a great-granddaughter of Anne, Princess Royal and Princess of Orange, herself a daughter of George II of the United Kingdom.