Nathan Anang Quao, MV, OSG (21 November 1915 – 15 February 2005) was a Ghanaian diplomat, educationist and public servant who became a senior presidential advisor on governance to the administrations of multiple Heads of State of Ghana. Quao was the founding principal of the Keta Secondary School in Keta, Ghana, started in 1953. He was described by independent observers as part of "diminishing survivors of an era, which many consider to have been high-noon of quality and dedication in the civil service."