The 1983 Swiss Indoors was a men's tennis tournament played on indoor hard courts at the St. Jakobshalle in Basel, Switzerland that was part of the 1983 Volvo Grand Prix. It was the 15th edition of the tournament and was held from 10 October through 16 October 1983. Third-seeded Vitas Gerulaitis won the singles title.
Vitas Gerulaitis defeated 
Wojciech Fibak 4–6, 6–1, 7–5, 5–5, ret.
Pavel Složil / Tomáš Šmíd defeated 
Stefan Edberg / 
Florin Segărceanu 6–1, 3–6, 7–6