1985 WTA Swiss Open
Date	20–26 May
Edition	9th
Draw	48S / 24D
Prize money	$100,000
Surface	Clay / outdoor
Location	Lugano, Switzerland
Champions
Singles
Bonnie Gadusek
Doubles
Bonnie Gadusek Helena Suková
← 1984 · WTA Swiss Open · 1986 →

The 1985 WTA Swiss Open was a women's tennis tournament played on outdoor clay courts in Lugano, Switzerland that was part of the 1985 Virginia Slims World Championship Series. It was the ninth edition of the tournament and was held from 20 May through 26 May 1985. Third-seeded Bonnie Gadusek won the singles title.^[1]

Bonnie Gadusek defeated Manuela Maleeva 6–2, 6–2

• It was Gadusek's 2nd singles title of the year and the 3rd of her career.

Bonnie Gadusek / Helena Suková defeated Bettina Bunge / Eva Pfaff 6–2, 6–4

• ITF tournament edition details