1989 Italian Open
Date	15–21 May 1989 (men) 8–14 May 1989 (women)
Edition	46th
Surface	Clay / outdoor
Location	Rome, Italy
Venue	Foro Italico
Champions
Men's singles
Alberto Mancini[1]
Women's singles
Gabriela Sabatini
Men's doubles
Jim Courier / Pete Sampras[2]
Women's doubles
Elizabeth Smylie / Janine Tremelling
← 1988 · Italian Open · 1990 →

The 1989 Italian Open was a tennis tournament played on outdoor clay courts at the Foro Italico in Rome in Italy that was part of the 1989 Nabisco Grand Prix and of the Category 5 tier of the 1989 WTA Tour. The men's tournament was held from 15 May through 21 May 1989, while the women's tournament was played from 8 May through 14 May 1989. Alberto Mancini and Gabriela Sabatini won the singles titles.

Finals

Men's singles

Alberto Mancini defeated Andre Agassi 6–3, 4–6, 2–6, 7–6, 6–1

• It was Mancini's 2nd title of the year and the 4th of his career.

Women's singles

Gabriela Sabatini defeated Arantxa Sánchez Vicario 6–2, 5–7, 6–4

• It was Sabatini's 3rd title of the year and the 21st of her career.

Men's doubles

Jim Courier / Pete Sampras defeated Danilo Marcelino / Mauro Menezes 6–4, 6–3

• It was Courier's 1st title of the year and the 1st of his career. It was Sampras' only title of the year and the 1st of his career.

Women's doubles

Elizabeth Smylie / Janine Tremelling defeated Manon Bollegraf / Mercedes Paz 6–4, 6–3

• It was Smylie's 4th title of the year and the 25th of her career. It was Tremelling's 2nd title of the year and the 4th of her career.