Francisco Armero y Fernández de Peñaranda (3 May 1804, in Fuentes de Andalucía – 1 July 1866, in Seville), Marquess of Nervión and Grandee of Spain was a Spanish Captain general of the Navy and politician.

In 1840, he became for the first time Minister of the Navy, Commerce and Colonies under Prime Ministers Antonio González González, Valentín Ferraz y Barrau and Modesto Cortázar until 11 September 1840.

Four years later, he became again Minister of the Navy, Commerce and Colonies in the Ramón María Narváez cabinet between 3 May 1844 and 12 February 1846, and again between 5 April 1846 and 28 January 1847 in the Francesco Xavier de Isturiz cabinet.

He became for a fourth time Minister of the Navy between 2 June 1851 and 3 May 1852 under Juan Bravo Murillo.

But before that, he had served a fifth term as Minister of the Navy between 16 September 1864 and 21 Juny 1865 under Ramón María Narváez.