Duke of Algeciras (Spanish: Duque de Algeciras), is a title of Spanish nobility that is accompanied by the dignity of Grandee of Spain.

It was granted to Isabel Gutiérrez de Castro in 1906 by Alfonso XIII.

[2] The title was granted in honor of the first duchess's late son, Juan Manuel Sanchez y Gutiérrez de Castro, who was married to the Duchess of Almodóvar del Río.

The title makes reference to the municipality of Algeciras, near the Strait of Gibraltar.

This biography of a Spanish noble is a stub.