Alfonso de la Peña Montenegro (29 Apr 1596 – 1687) was a Roman Catholic prelate who served as Bishop of Quito (1653–1687).
Alfonso de la Peña Montenegro was born in Padrón, Spain on 29 April 1596. On 4 March 1653, he was selected by the King of Spain and confirmed by Pope Innocent X on 18 August 1653 as Bishop of Quito. In April 1654, he was consecrated bishop by Cristóbal de Torres, Archbishop of Santafé en Nueva Granada. He served as Bishop of Quito until his death in 1687.