The 1985 Virginia Slims of Chicago was a women's tennis tournament played on indoor carpet courts at the UIC Pavilion in Chicago, Illinois in the United States and was part of the Category 3 tier[1] of the 1985 WTA Tour.

It was the 14th edition of the tournament and was held from September 16 through September 22, 1985.

Fifth-seeded Bonnie Gadusek won the singles title and earned $27,000 first-prize money.

[2] Bonnie Gadusek defeated Kathy Rinaldi 6–1, 6–3 Kathy Jordan / Elizabeth Smylie defeated Elise Burgin / JoAnne Russell 6–2, 6–2