Juan de Valladolid (English: John of Valladoid) (–?), also known as Juan Poeta ("John the poet"), was a Castilian poet. Born Jewish, he converted to Christianity later in life. As a converso or a baptized Jew, he married a Christian woman named Jamila.
Born in Valladolid, Juan de Valladolid lived for some time at the courts in Naples and Milan, where he was an astrologer. and also married a Moorish woman in Fez. He eventually traveled to Spain where he became known as a poet and made the acquaintance of , where the two would exchange satirical poems.