1990 Italian Open (tennis)

The 1990 Italian Open (known as the Peugeot Italian Open for sponsorship reasons) was a tennis tournament played on outdoor clay courts. It was the 47th edition of the Italian Open, and was part of the ATP Super 9 of the 1990 ATP Tour, and of the Tier I Series of the 1990 WTA Tour. Both the men's and the women's events were held at the Foro Italico in Rome, Italy. The women's tournament was played from May 7 through May 13, 1990, and the men's tournament was played from May 13 through May 21, 1990.

Men's singles
🇦🇹 Thomas Muster defeated Andrei Chesnokov 6–1, 6–3, 6–1
 * It was Thomas Muster's 3rd title of the year and his 8th overall. It was his 1st career Masters title.

Women's singles
Monica Seles defeated 🇺🇸 Martina Navratilova 6–1, 6–1
 * It was Monica Seles' 4th title of the year and her 5th overall. It was her 1st Tier I title.

Men's doubles
🇪🇸 Sergio Casal / 🇪🇸 Emilio Sánchez defeated 🇺🇸 Jim Courier / 🇺🇸 Martin Davis 7–6, 7–5

Women's doubles
🇨🇦 Helen Kelesi / Monica Seles defeated 🇮🇹 Laura Garrone / 🇮🇹 Laura Golarsa 6–3, 6–4