Joseph Albert Blaise Rabetafika (3 February 1932 – 17 December 2000) was a Malagasy diplomat.
He was Permanent Representative of Madagascar to the United Nations from 1969 to 1992, Malagasy Ambassador to Canada from 1970 to 1989, and Ambassador to Cuba from 1974 to 1992.
In March 1985 and later in June 1986, he served as President of the United Nations Security Council.