The 1980 Suisse Open Gstaad was a men's tennis tournament played on outdoor clay courts in Gstaad, Switzerland. It was the 35th edition of the tournament and was held from 7 July through 13 July 1980. The tournament was part of the 1980 Volvo Grand Prix tennis circuit. Third-seeded Heinz Günthardt won the singles title.[1]
Heinz Günthardt defeated 
Kim Warwick 4–6, 6–4, 7–6
Colin Dowdeswell / 
Ismail El Shafei defeated Mark Edmondson / Kim Warwick 6–4, 6–4