Princess Louise d'Orléans (Louise Victoire Marie Amélie Sophie; 19 July 1869 – 4 February 1952) was a French princess of the House of Orléans and a member of the Royal Family of Bavaria. Throughout her life Louise remained very close to her first cousin, the Austrian archduchess Marie Valerie of Habsburg-Lorraine.

Princess Louise was born at Bushy House, Teddington, England in 1869, a daughter of the French prince Ferdinand Philippe Marie d'Orléans, "duc d'Alençon", and his wife Duchess Sophie Charlotte in Bavaria, herself a sister of Empress Elisabeth of Austria ("Sisi") and Queen Marie of the Two Sicilies, the heroine of Gaëte. Her paternal grandparents were Princess Victoria of Saxe-Coburg and Gotha and Prince Louis Charles Philippe d'Orléans, "duc de Nemours", the second son of Louis-Philippe I, King of the French. Louise had a younger brother, Prince Emmanuel d'Orléans, "duc de Vendôme".

On 15 April 1891 she married her cousin, the infante of Spain Alfons of Bavaria, at Schloss Nymphenburg. He was the son of Prince Adalbert of Bavaria (1828–1875) and his wife, Amelia de Bourbon (1834–1905).

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