The 1992 Mercedes Cup, was a men's tennis tournament played on outdoor clay courts and held at the Tennis Club Weissenhof in Stuttgart, Germany that was part of the Championship Series of the 1992 ATP Tour. It was the 15th edition of the tournament was held from 13 July until 19 July 1992. Unseeded qualifier Andrei Medvedev won the singles title.
Andrei Medvedev defeated Wayne Ferreira, 6–1, 6–4, 6–7(5–7), 2–6, 6–1
Glenn Layendecker / Byron Talbot defeated Marc Rosset / 
Javier Sánchez, 6–3, 7–6