Hyacinthe Thiandoum (2 February 1921 – 18 May 2004) was the first native Archbishop of Dakar (Senegal) and who was elevated to the cardinalate in mid-1976 by Pope Paul VI.

After finishing his secondary studies, he entered the regional seminary of Dakar and was ordained a priest on 18 April 1949, did parish work for two years and then went to Rome for further study at the Pontifical Gregorian University.

He returned to Senegal in 1953 and, after working as a chaplain to Catholic action groups, became parish priest of the Dakar cathedral in 1960 and Vicar General the following year.

He was made a Cardinal-Priest by Paul VI in the Consistory of 24 May 1976, receiving the titular church of Santa Maria del Popolo.

He has been the President of CEPACS (the Pan-African Episcopal Commission for Social Communications).