1990 Great American Bank Classic

The 1990 Great American Bank Classic was a women's tennis tournament played on outdoor hard courts in San Diego, California, United States, that was part of the Tier III category of the 1990 WTA Tour. It was the 13th edition of the tournament and was held from August 6 through August 12, 1990. First-seeded Steffi Graf won the singles title.

Singles
Steffi Graf defeated Manuela Maleeva-Fragnière 6–3, 6–2.
 * It was Graf's 6th singles title of the year and the 50th of her career.

Doubles
🇺🇸 Patty Fendick / 🇺🇸 Zina Garrison defeated 🇺🇸 Elise Burgin / Rosalyn Fairbank-Nideffer 6–4, 7–6(7–5).