The 1991 Citizen Cup was a women's tennis tournament played on outdoor clay courts at the Am Rothenbaum in Hamburg in West Germany that was part of the Tier II category of the 1991 WTA Tour. It was the 14th edition of the tournament and was held from 29 April until 5 May 1991. Second-seeded Steffi Graf won the singles title, her fifth consecutive at the event. Finals Singles Steffi Graf defeated Monica Seles 7–5, 6–7(4–7), 6–3 It was Graf's 2nd singles title of the year and the 56th of her career. Doubles Jana Novotná / Larisa Neiland defeated Arantxa Sánchez Vicario / Helena Suková 7–5, 6–1 References External links ITF tournament edition details Tournament draws Citizen Cup WTA Hamburg Citizen Cup Citizen Cup Citizen Cup 1991 in German tennis