Family name Terä (Terä 
) , worldwide, is a very rare cognomen. The family name Terä is habitual in Northern Europe, particularly Finland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Terä | Finland |
| martti vihtori terä Finnish soldier, FI (b. 1902) |
|
|
| esra terä Finnish military personnel, FI (b. 1903) |
|