Joaquín Costa (September 14, 1846, Monzón, Huesca Province^[1] – February 8, 1911, Graus, Huesca Province^[2]) was a Spanish politician, lawyer, economist and historian.

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The son of an Aragonese farmer and his first wife, Costa was self-educated and campaigned to end what he considered to be Spanish backwardness. He desired to start a movement that would force politicians to embark on a program of educational, social, and economic reform.

According to Raymond Carr his ideas, known as 'Regenerationism' (scientific study of Spain's decline as a nation), rose to greater prominence in the aftermath of Spain's defeat in the Spanish–American War.^[3]

• Media related to Joaquín Costa at Wikimedia Commons
• Digitalized works by Joaquín Costa @ the Biblioteca Digital Hispánica of the Biblioteca Nacional de España.