The 1991 St. Petersburg Open was a women's tennis tournament played from September 21 through 29, 1991,[1] on indoor carpet courts at the St. Petersburg Sports and Concert Complex in Saint Petersburg, Soviet Union, that was part of Tier V of the 1991 Kraft General Foods World Tour (1991 WTA Tour). It was the third edition of the WTA tournament inaugurated under the title of Virginia Slims of Moscow in 1989 and later known as the Moscow Ladies Open.
See main article: 1991 St. Petersburg Open – Singles. Larisa Savchenko-Neiland defeated 
Barbara Rittner 3–6, 6–3, 6–4[2]
See main article: 1991 St. Petersburg Open – Doubles. Elena Brioukhovets / Natalia Medvedeva defeated 
Isabelle Demongeot / 
Jo Durie 7–5, 6–3