Family name Țoiu (Țoiu 
) , across the world, is a very rare last name. The family name Țoiu is habitual in Eastern Europe, particularly Romania, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Țoiu | Romania |
|
constantin țoiu Romanian writer, RO (b. 1923) |
|
| oana-silvia țoiu Romanian politician, RO (b. 1985) |
|