| Order: | 5th |
| Office: | Prime Minister of Madagascar |
| Term Start: | 15 October 1895 |
| Term End: | September 1896 |
| Predecessor: | Rainilaiarivony |
| Successor: | Rasanjy |
| Office2: | Minister of Foreign Affairs |
| Term Start2: | 1864 |
| Term End2: | 1895 |
| Monarch2: | Ranavalona III |
| Party: | Independent |
| Birth Place: | Kingdom of Imerina |
| Birth Date: | before 1864 |
| Death Date: | after September 1896 |
| Death Place: | Madagascar |
Rainitsimbazafy (before 1864-after September 1895) was the Minister of Foreign Affairs under Queen Ranavalona III in the late 19th century in the Kingdom of Imerina. Following the French capture of the queen's palace at the capital city of Antananarivo in Autumn of 1895, the Merina Kingdom's Prime Minister for 31 years prior, Rainilaiarivony, was removed from his post and placed under house arrest by the French Governor-General. On October 15, 1895, Rainitsimbazafy was appointed Prime Minister of Madagascar in his place. The selection of Rainitsimbazafy was made by joint agreement between the queen and the French Governor-General, the latter viewing him as occupying a ceremonial role only and posing no threat to the newly established authority of France. Rainitsimbazafy was elderly at the time of his appointment to the post of Prime Minister. He was relieved of his post in September 1896.[1]