Óscar José Ricardo Maúrtua de Romaña (born 7 February 1947) is a Peruvian diplomat and jurist who served as Minister of Foreign Relations of Peru from August 2021 to February 2022, under the presidency of Pedro Castillo. He previously occupied the office under President Alejandro Toledo during the last of year of his presidency. Maúrtua serves as president of the Peruvian International Law Society since 2017.