The 1990 CA-TennisTrophy was a men's tennis tournament played on indoor carpet courts at the Wiener Stadthalle in Vienna, Austria and was part of the World Series of the 1990 ATP Tour.

It was the 16th edition of the tournament and was held from 15 October through 22 October 1990.

Unseeded Anders Järryd won the singles title.

[3] Anders Järryd defeated Horst Skoff 6–3, 6–3, 6–1 Udo Riglewski / Michael Stich defeated Jorge Lozano / Todd Witsken 6–4, 6–4