The 1990 Stockholm Open was a tennis tournament played on indoor hard courts. It was the 22nd edition of the Stockholm Open and was part of the ATP Super 9 of the 1990 ATP Tour. It took place at the Kungliga tennishallen in Stockholm, Sweden, from October 22 through October 29, 1990.
The singles draw was headlined by World No. 1, Wimbledon champion, Los Angeles, New Haven, Indian Wells, Cincinnati titlist Stefan Edberg, Brussels, Indianapolis, Stuttgart indoor winner, Wimbledon runner-up Boris Becker and Key Biscayne, San Francisco, Washington champion, French Open, US Open finalist Andre Agassi. Other top seeds were US Open, Manchester winner Pete Sampras, French Open, Barcelona champion Andrés Gómez, Emilio Sánchez, Brad Gilbert and John McEnroe.