Worldwide, Thiska (Thiska 
) is an extremely rare feminine forename. Much less frequently, Thiska is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Thiska | Brazil, Netherlands, India |
| thiska wehrbein thiel editor (1866-1941), NL (b. 1866) |
|
Braad, Thoen, Pompstra, Engels, and Hoogenboom