1990 Tournoi de Bayonne

The 1990 Tournoi de Bayonne, also known as the WTA Bayonne, was a women's tennis tournament played on indoor carpet courts in Bayonne, France, and was part of the Tier V category of the 1990 WTA Tour. It was the second edition of the tournament and was held from 24 September until 30 September 1990. Second-seeded Nathalie Tauziat won the singles title and collected $18,000 fist-prize money.

Singles
🇫🇷 Nathalie Tauziat defeated Anke Huber 6–3, 7–6(10–8)
 * It was Tauziat's only singles title of the year and the 1st of her career.

Doubles
🇦🇺 Louise Field / 🇫🇷 Catherine Tanvier defeated 🇦🇺 Jo-Anne Faull / 🇦🇺 Rachel McQuillan 7–6(7–3), 6–7(5–7), 7–6(7–5)
 * It was Field's 2nd and last title doubles of the year and of her career. It was Tanvier's only doubles title of the year and the 8th of her career.