Carlos Fernández Vallespín (13 July 1913 – 28 April 1977) was a Spanish military officer.

Carlos Fernández Vallespín was born in Ferrol, Galicia on 13 July 1913.

In 1974 he was appointed Chief of the Defence High Command (Alto Estado Mayor, AEM),[1] the principal staff body of the Francoist Spanish Armed Forces, in charge of coordination between the general staffs of the three military branches.

With the advent of democracy and the restructuring of the Armed Forces, he was appointed President of the newly created Board of Joint Chiefs of Staff (Junta de Jefes de Estado Mayor, JUJEM) in 1977.

Shortly after this last appointment, he died in Madrid of a myocardial infarction, on 28 April 1977.