Florentino Asensio Barroso was a Spanish Catholic prelate born in 1877 who served as the apostolic administrator for the Diocese of Barbastro. After completing theological studies in Valladolid, he worked as a priest, a teacher, and a chaplain for several religious congregations. He was appointed a titular bishop in 1935, but his leadership was met with opposition during the Spanish Civil War. He was arrested and subsequently killed in August 1936, an event later recognized as martyrdom.