1988 CA-TennisTrophy
Date	17–24 October
Edition	14th
Category	Grand Prix
Draw	32S / 16D
Prize money	$140,000
Surface	Carpet / indoor
Location	Vienna, Austria
Venue	Wiener Stadthalle
Champions
Singles
Horst Skoff[1]
Doubles
Alex Antonitsch / Balázs Taróczy[2]
← 1987 · Vienna Open · 1989 →

The 1988 CA-TennisTrophy was a men's tennis tournament played on indoor carpet courts at the Wiener Stadthalle in Vienna, Austria that was part of the 1988 Nabisco Grand Prix. It was the 14th edition of the tournament and ran from 17 October through 24 October 1988. Unseeded Horst Skoff won the singles title.

Finals

Singles

Horst Skoff defeated Thomas Muster 4–6, 6–3, 6–4, 6–2

• It was Skoff's 2nd title of the year and the 3rd of his career.

Doubles

Alex Antonitsch / Balázs Taróczy defeated Kevin Curren / Tomáš Šmíd 4–6, 6–3, 7–6

• It was Antonitsch's only title of the year and the 2nd of his career. It was Taróczy's only title of the year and the 38th of his career.