Onésimo Redondo Ortega (16 February 1905 – 24 July 1936) was a Spanish Falangist politician.
He founded Juntas Castellanas de Actuación Hispánica (the Castilian Hispanic Action Groups), a political group that merged with Ramiro Ledesma's Juntas de Ofensiva Nacional-Sindicalista (Unions of the National-Syndicalist Offensive) and José Antonio Primo de Rivera's Falange Española.
Together with Ledesma and Primo de Rivera, Redondo was one of the key figures of Francoist propaganda.