The same - Teresa
Since Teresa is a name, it changes only in pronunciation. Nevertheless, I use Teresa as a Spanish equivalent to my English name Tess
Teresa
Teresa is the correct pronunciation for the Spanish version of Therese.
Para mi buena amiga Teresa
Saint Teresa of Avila, also known as Saint Teresa of Jesus, was born in Ávila, Spain in 1515. She is a prominent Spanish mystic and Carmelite nun, known for her spiritual writings and reform of the Carmelite Order.
St. Teresa of Ávila spoke Old Spanish.
St. Teresa of Jesus also known as St. Teresa of Avila was born in Spain.
You would say "Teresa tiene quince años."
Teresa carga (sus) libros en su mochila 'sus' = 'her'
There are several saints named Teresa. Please be specific.
St. Teresa of Avila.
To judge from the next (fuller) question, it could be a transliteration into Spanish of 'Terry', or short for 'Teresa'.