The 1991 Torneo Internazionale Femminile di Palermo was a women's tennis tournament played on outdoor clay courts at the Country Time Club in Palermo, Italy that was part of the Tier V category of the 1991 WTA Tour.

It was the fourth edition of the tournament and was held from 8 July until 14 July 1991.

Unseeded Mary Pierce won the singles title and earned $13,500 first-prize money.

[1][2] Mary Pierce defeated Sandra Cecchini 6–0, 6–3 Mary Pierce / Petra Langrová defeated Laura Garrone / Mercedes Paz 6–3, 6–7(5–7), 6–3