Cognomen Tantoy (Tantoy 
) , all around the world, is quite a rare family name. The family name Tantoy is characteristic of Philippines, where it is quite a rare surname, Singapore, where it is a rare surname, and Saudi Arabia, where it is a very rare surname. In absolute terms, it is the most numerous in Philippines, the United States, and Saudi Arabia. Much less frequently, Tantoy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tantoy | Philippines, United States, India, Saudi Arabia, China |