Around the globe, Toán (Toán 
) is a rare principally male, but very seldom feminine forename. The first name Toán is characteristic of South-eastern Asia, particularly Vietnam, where it is a rare predominantly masculine, but very infrequently feminine name. Likewise, Toán is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Toán | Vietnam, United States |