English:
* Theresa: This is another common spelling, particularly in the United States.
* Teressa: This spelling is less common but still acceptable.
Other Languages:
* Tereza: Czech, Slovak
* Terez: Hungarian
* Terezinha: Portuguese
* Teresa: Italian, Spanish, French
* Terese: Scandinavian
* Teresia: Finnish
* Teréz: Hungarian
It's important to note that the spelling can vary depending on the language and regional dialect.