David Hierro Santos

David Hierro Santos (born 1978) is a Spanish politician of the party Vox. He was elected to the Cortes of Castile and León in 2022 and became his party's spokesman in the legislature in 2025, and was re-elected to the Cortes in 2026.

Biography Hierro was born in Palencia in Castile and León and has two children as of 2025. He graduated with a history degree from the University of Valladolid, specialising in prehistory, archaeology, ancient and medieval history. He has contributed to archaeological investigations by his alma mater, as well as working as a business consultant. On 3 February 2025, when Juan García-Gallardo quit frontline politics, Hierro succeeded him as Vox's leader in Castile and León. In the 2026 Castilian-Leonese regional election, President of the Cortes Carlos Pollán led Vox's entire campaign, while Hierro led their list in Palencia; he retained his seat while the People's Party (PP) and Spanish Socialist Workers' Party (PSOE) shared the remaining six.

Political positions In 2025, El Español reported that Vox members in Castile and León considered Hierro to be aligned with the party's central leadership under Santiago Abascal.

Hierro is an opponent of organised labour, and has alleged that union leaders have control over the PP. He opposes the 2030 Agenda, and tore up a document relating to it in the Cortes, subsequently uploading the photo of the incident as his profile picture on Twitter.