Pedro de Alcántara Téllez-Girón y Pacheco, 9th Duke of Osuna, Grandee of Spain[note 1] (8 August 1755 – 7 January 1807), was a Spanish nobleman and military commander during the French Revolutionary Wars.

His father, the 8th Duke, was Pedro Zoilo Téllez Girón y de Guzmán (27 June 1728 – 1 April 1787) and his mother was María Vicenta de la Portería Pacheco Téllez-Girón (born 28 July 1735).

[citation needed] Téllez-Girón held important commands during the War of the Pyrenees which began on 7 March 1793 and ended with the Peace of Basel on 22 July 1795.

[citation needed] In a famous portrait, Goya portrays the Duke of Osuna without any medals in front of a dark background.

Another of the children from Goya's painting was Pedro de Álcantara Téllez-Girón y Pimentel, (1786–1851), Principe de Anglona, Captain General of the Island of Cuba from 10 January 1840 to 7 March 1841, and who was substituted by Jerónimo Valdés y Sierra (1784–1855), Captain General of the Island of Cuba from 7 March 1841 to 13 September 1843.