Cognomen Tranchemontagne (Tranchemontagne 
) , globally, is a rare surname. The surname Tranchemontagne is habitual in Canada, where it is a rare surname, New Zealand, where it is a very rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Tranchemontagne | New Zealand, Canada, United States |
| andré tranchemontagne Canadian politician (1939-2016), CA (b. 1939) |
|