The 1981 Geneva Open was a men's tennis tournament played on clay courts that was part of the 1981 Volvo Grand Prix. It was played at Geneva, Switzerland and was held from 21 September until 27 September 1981. First-seeded Björn Borg won the singles title.
See main article: 1981 Geneva Open – Singles. Björn Borg defeated Tomáš Šmíd 6–4, 6–3
See main article: 1981 Geneva Open – Doubles. Heinz Günthardt / Balázs Taróczy defeated Pavel Složil / Tomáš Šmíd 6–4, 3–6, 6–2