Surname Martineaux (Martineaux 
) , all around the world, is a very rare cognomen. The surname Martineaux is characteristic of Trinidad and Tobago, where it is quite a rare surname, France, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Trinidad and Tobago, the United States, and France.
| VARIANT | COUNTRY |
|---|---|
| Martineaux | United Kingdom, United States, Canada, France, Trinidad and Tobago |