The 1991 Pilkington Glass Championships was a tennis tournament played on grass courts at the Devonshire Park Lawn Tennis Club in Eastbourne in England that was part of Tier II of the 1991 WTA Tour. The tournament was held from June 17 through June 23, 1991.
Martina Navratilova defeated Arantxa Sánchez Vicario 6–4, 6–4.
- It was Navrátilová's fourth singles title of the year and the 144th of her career.
Larisa Savchenko-Neiland / Natalia Zvereva defeated Gigi Fernández / Jana Novotná 2–6, 6–4, 6–4.
- It was Savchenko's fifth doubles title of the year and the 23rd of her career. It was Zvereva's fourth doubles title of the year and the 14th of her career.