Darío de Regoyos y Valdés (November 1, 1857 – October 29, 1913) was a Spanish painter. He was notable for contributing to "the renewal of modern Spanish painting". A student of Carlos de Haes at the Real Academia de Bellas Artes de San Fernando in 1878 he studied at the Académie Royale des Beaux-Arts and in Brussels. He traveled extensively in the 1880s, accompanied by his friend, the painter Adolfo Guiard. He was a member of the art group L'Essor and a founding member of Les XX with the Belgian avant-garde scene. During these experiences he gained a significant influence from Impressionist and Neo-Impressionist painters.
His works include El paseo de Alderdi Eder (1894), Penaas de Duranguesado, La Espana Negra:Victimas de la fiesta (1894), Mercado de Villarnaca de Oria (1909), Gallinero (1912 ) and Polluelos (1912). Though his work was not very popular during his lifetime, after his death, a tribute exhibition was devoted to him in the Biblioteca Nacional de España in Madrid. Collections of his art are held by the Bilbao Fine Arts Museum, the Museu Nacional d'Art de Catalunya in Barcelona, Abelló Museum in Vallès Oriental, and the Carmen Thyssen Museum in Málaga.
Regoyos was born in Ribadesella, the son of Darío Regoyos Morenillo, an architect and assistant of Public Works. In his youth, he moved to Madrid, entering the Real Academia de Bellas Artes de San Fernando in 1878. He was a student of Belgian Carlos de Haes. Invited by friends Enrique Fernández Arbós and Isaac Albéniz, and following the advice of Haes, Regoyos visited Brussels in the following year. He studied at the Académie Royale des Beaux-Arts and lived in the Belgian capital for ten years, his patron being Edmond Picard who introduced him to the thriving art world in Brussels.