1999 CA-TennisTrophy
Date	11–18 October
Edition	25th
Category	Championship Series (Double-Up Week)
Draw	32S / 16D
Prize money	$675,000
Surface	Carpet / indoor
Location	Vienna, Austria
Venue	Wiener Stadthalle
Champions
Singles
Greg Rusedski[1]
Doubles
David Prinosil / Sandon Stolle[2]
← 1998 · Vienna Open · 2000 →

The 1999 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 Championship Series of the 1999 ATP Tour. It was the 25th edition of the tournament and was held from 11 October until 18 October 1999. Fifth-seeded Greg Rusedski won the singles title.

Finals

Singles

Greg Rusedski defeated Nicolas Kiefer 6–7^(5–7), 2–6, 6–3, 7–5, 6–4

• It was Rusedski's 3rd title of the year and the 12th of his career.

Doubles

David Prinosil / Sandon Stolle defeated Piet Norval / Kevin Ullyett 6–3, 6–4

• It was Prinosil's only title of the year and the 8th of his career. It was Stolle's 4th title of the year and the 13th of his career.