The Diocese of Ambositra is a Roman Catholic Diocese under the Archdiocese of Fianarantsoa in Madagascar. It is based in the town of Ambositra and was erected on 3 June 1999. It performs the Latin Rite. The Diocese covers approximately 24,000 km (15,000 mi). As of 2004, the diocese population was about 334,828, with 48.1% Catholic. 57 priests were in the Diocese as of 2004 for a ratio of 5,874 Catholics for every 1 Priest. Fidelis Rakotonarivo, SJ has been the Bishop of the Diocese since June 2005.

• Fulgence Rabemahafaly (3 June 1999 - 1 October 2002), appointed Archbishop of Fianarantsoa
• Fidelis Rakotonarivo, S.J. (24 Jun 2005 -)

• Marcellin Randriamamonjy, appointed Bishop of Fenoarivo Atsinanana in 2009

• Catholic-hierarchy.org profile of Ambositra Diocese

20°31′53″S 47°14′42″E / 20.5314°S 47.2451°E / -20.5314; 47.2451