The 1990 Geneva European Open was a women's tennis tournament played on outdoor clay courts in Geneva, Switzerland that was part of the Tier IV category of the 1990 WTA Tour.

It was the 14th edition of the tournament and was held from 21 May until 27 May 1990.

Second-seeded Barbara Paulus won the singles title.

[1][2] Barbara Paulus defeated Helen Kelesi 2–6, 7–5, 7–6(7–3) Louise Field / Dianne Van Rensburg defeated Elise Burgin / Betsy Nagelsen 5–7, 7–6(7–2), 7–5