Cognomen Nyasio (Nyasio 
) , all over the world, is a rare last name. The cognomen Nyasio is habitual in Tanzania, where it is a rare surname, Kenya, and Germany, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Tanzania, Kenya, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Nyasio | United States, Tanzania, Kenya, Germany |