2001 CA-TennisTrophy

The 2001 CA-TennisTrophy was a men's tennis tournament played on indoor hard courts at the Wiener Stadthalle in Vienna, Austria, and was part of the International Series Gold of the 2001 ATP Tour. It was the 27th edition and took place from 8 October through 14 October 2001. Sixth-seeded Tommy Haas won the singles title.

Singles
🇩🇪 Tommy Haas defeated 🇦🇷 Guillermo Cañas 6–2, 7–6(8–6), 6–4
 * It was Haas' 3rd title of the year and the 4th of his career.

Doubles
🇨🇿 Martin Damm / 🇨🇿 Radek Štěpánek defeated 🇨🇿 Jiří Novák / 🇨🇿 David Rikl 6–3, 6–2
 * It was Damm's 2nd title of the year and the 20th of his career. It was Štěpánek's 3rd title of the year and the 4th of his career.