Cognomen Ntiranyibagira (Ntiranyibagira 
) , across the world, is a rare last name. The surname Ntiranyibagira is characteristic of Burundi, where it is quite a rare surname, Italy, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Burundi, Italy, and the United States. Much less frequently, Ntiranyibagira is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ntiranyibagira | Italy, Canada, United States, Burundi, France |