2006 Mercedes Cup
Date	17–23 July
Edition	29th
Category	International Series Gold
Draw	48S / 16D
Prize money	$665,000
Surface	Clay / outdoor
Location	Stuttgart, Germany
Venue	Tennis Club Weissenhof
Champions
Singles
David Ferrer[1]
Doubles
Gastón Gaudio / Max Mirnyi[2]
← 2005 · Stuttgart Open · 2007 →

The 2006 Mercedes Cup was the 2006 edition of the Mercedes Cup men's tennis tournament and was part of the International Series Gold of the 2006 ATP Tour. It was the 29th edition of the tournament and was held from 17 until 23 July 2006 at the Tennis Club Weissenhof in Stuttgart, Germany. Third-seeded David Ferrer won his first title of the year, and second of his career.

David Ferrer defeated José Acasuso, 6–4, 3–6, 6–7^(3–7), 7–5, 6–4

Gastón Gaudio / Max Mirnyi defeated Yves Allegro / Robert Lindstedt 7–5, 6–7^(4–7), [12–10]

• Official website
• ATP tournament profile
• ITF tournament edition details Archived 2017-07-28 at the Wayback Machine
• Singles draw
• Doubles draw