Miguel Augustus Francisco Ribeiro (born 2 February 1904 in Cape Coast)[1] was a Ghanaian diplomat.

[citation needed] After his secondary education, Ribeiro taught at Mfantsipim School from 1924 to 1931, and Achimota College as a junior staff from 1931 to 1939.

[citation needed] Ribeiro was the first ambassador of Ghana to Ethiopia between 2 September 1959 and 3 April 1962.

[4] As Ghana's ambassador to the USA, he represented the Ghanaian government to sign the Treaty to ban nuclear weapons testing in the atmosphere, in space and under water in August 1963.

[5] Following his work in the United States, Ribeiro was appointed as Ghana's ambassador to Italy from 1966 to 1971.