Narciso G. Reyes (born 2 February 1914 in Tondo, died 7 May 1996) was a Filipino diplomat and author. He served as Chairman of UNICEF from 1972 to 1974 and as Secretary-General of the Association of Southeast Asian Nations from 1980 to 1982. Reyes also served as Permanent Representative to the United Nations and Ambassador to the United Kingdom, China and other countries.
He initially worked as a teacher, journalist and newspaper publisher. In 1948 he joined the civil service and was posted to the Permanent Mission to the United Nations in New York in 1954. He then became Director of the Philippine Information Agency. He was then posted to Thailand and was Ambassador in Burma from 1958 to 1962. In 1962 he became Ambassador in Indonesia. From 1966 to 1970 he served as Ambassador to the United Kingdom. He then became the Permanent Representative to the United Nations in New York. He was Chairman of UNICEF from 1972 to 1974.
From 1977 to 1982 he was Ambassador to the People's Republic of China. He was Secretary-General of the Association of Southeast Asian Nations from 1980 to 1982.