Caroline von Gomperz-Bettelheim, or C(K)aroline Bettelheim, pseudonym: Tellheim (Hungarian: Bettelheim-Gomperz Caroline; 1 June 1845, in Pest – 13 December 1925, in Vienna) was a Hungarian-Austrian court singer and member of the Royal Opera, Vienna. Her younger brother was Anton Bettelheim. She was born at Pest (Budapest), Hungary. She studied pianoforte with Karl Goldmark, and singing with Moritz Laufer. At the age of 14, she made her début as a pianist, and two years later appeared for the first time in opera at Vienna. She eventually obtained a permanent engagement at the Royal Opera in tha