1989 Open de la Côte Basque

The 1989 Open de la Côte Basque, also known as the WTA Bayonne, was a women's tennis tournament played on indoor hard courts in Bayonne, France, and was part of the Category 2 tier of the 1989 WTA Tour. It was the inaugural edition of the tournament and was held from 16 October until 22 October 1989. Third-seeded Katerina Maleeva won the singles title.

Singles
🇧🇬 Katerina Maleeva defeated 🇪🇸 Conchita Martínez 6–2, 6–2
 * It was Maleeva's 2nd title of the year and the 7th of her career.

Doubles
Manon Bollegraf / 🇫🇷 Catherine Tanvier defeated Elna Reinach / 🇮🇹 Raffaella Reggi 7–6(7–3), 7–5
 * It was Bollegraf's 3rd doubles title of the year and the 4th of her career. It was Tanvier's only doubles title of the year and the 7th of her career.