The 1973 Swedish Open, also known as the Swedish International Tennis Championships, was a men's tennis tournament played on outdoor clay courts held in Båstad, Sweden.

It was classified as a Group B category tournament and was part of the 1973 Grand Prix circuit.

First-seeded Stan Smith won the singles title and earned $8,400 first-prize money.

It was the third tournament he won in Sweden within an eight month period, after the Stockholm Open on hard court in November 1972 and the Swedish Pro on carpet court in April 1973.

[3][4] Stan Smith defeated Manuel Orantes 6–4, 6–2, 7–6 Nikola Pilić / Stan Smith defeated Bob Carmichael / Frew McMillan 2–6, 6–4, 6–4