The Roman Catholic Diocese of Sarh (Latin: Sarhen(sis)) is a diocese in Sarh in the ecclesiastical province of N'Djamena in Chad.

• December 22, 1961: Established as Diocese of Fort-Archambault from the Diocese of Fort-Lamy
• August 22, 1972: Renamed as Diocese of Sarh

The cathedral is Cathédrale Notre Dame de l’Immaculée Conception in Sarh.

Bishops of Sarh, below

• Miguel Ángel Sebastián Martínez MCCJ (October 10, 2018 – present)
• Edmond Jitangar (October 11, 1991 – August 20, 2016), appointed Archbishop of N’Djaména
• Matthias N’Gartéri Mayadi (March 7, 1987 – June 11, 1990), appointed Bishop of Moundou
• Henri Véniat, S.J. (August 22, 1972 – March 7, 1987); see below

Bishop of Fort-Archambault, below

• Henri Véniat, S.J. (December 22, 1961 – August 22, 1972); see above

• Matthias N’Gartéri Mayadi (1985-1987), appointed Bishop here

Roman Catholicism in Chad

• GCatholic.org

9°08′41″N 18°23′02″E / 9.1448°N 18.3840°E / 9.1448; 18.3840