Segundo Serrano Poncela (1912 – 9 December 1976) was a Spanish Republican politician, writer, literary critic, and essayist associated with the Generation of '36 movement. He was a contributor to Claridad, the periodical of Francisco Largo Caballero, as well as a member of the Defense Council of Madrid, in which capacity he signed the orders for the removal from the prisons of Madrid various inmates who were subsequently massacred. At the end of the Spanish Civil War he went into exile in Latin America, where he taught literature.