2023 Credit One Charleston Open

The 2023 Charleston Open (branded as the 2023 Credit One Charleston Open for sponsorship reasons) was a professional women's tennis tournament played on outdoor clay courts at the Family Circle Tennis Center on Daniel Island in Charleston, South Carolina. It was the 51st edition of the tournament on the WTA Tour and was classified as a WTA 500 tournament on the 2023 WTA Tour. It was the only event of the clay court season played on green clay.

Singles

 * 🇹🇳 Ons Jabeur def. Belinda Bencic, 7–6(8–6), 6–4

This was Jabeur's fourth WTA Tour singles title, and first of the year. A tweener and slice combination played by her in the first set of the final was selected WTA 2023 Shot of the Year.

Doubles

 * 🇺🇸 Danielle Collins / 🇺🇸 Desirae Krawczyk def. 🇲🇽 Giuliana Olmos / 🇯🇵 Ena Shibahara, 0–6, 6–4, [14–12]

Seeds

 * 1 Rankings as of March 20, 2023.

Other entrants
The following players received wildcards into the main draw:
 * 🇺🇸 Fiona Crawley
 * 🇺🇸 Caroline Dolehide
 * 🇺🇸 Sofia Kenin
 * 🇺🇸 Emma Navarro
 * 🇺🇦 Elina Svitolina

The following player received entry using a protected ranking into the main draw:
 * Evgeniya Rodina

The following players received entry from the qualifying draw:
 * 🇺🇸 Hailey Baptiste
 * 🇺🇸 Louisa Chirico
 * 🇺🇸 Kayla Day
 * 🇩🇪 Anna-Lena Friedsam
 * 🇩🇪 Sabine Lisicki
 * 🇦🇷 Paula Ormaechea
 * 🇨🇦 Katherine Sebov
 * 🇺🇸 Sachia Vickery

Withdrawals

 * Before the tournament
 * 🇺🇸 Amanda Anisimova → replaced by 🇭🇺 Anna Bondár
 * 🇮🇹 Elisabetta Cocciaretto → replaced by 🇭🇺 Dalma Gálfi
 * 🇪🇪 Anett Kontaveit → replaced by Evgeniya Rodina
 * Jeļena Ostapenko → replaced by 🇦🇹 Julia Grabher
 * 🇺🇸 Alison Riske-Amritraj → replaced by 🇪🇸 Cristina Bucșa
 * Aryna Sabalenka → replaced by Diana Shnaider
 * 🇮🇹 Martina Trevisan → replaced by 🇺🇸 Madison Brengle

Seeds

 * Rankings are as of March 20, 2023.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇨🇦 Leylah Fernandez / 🇺🇸 Taylor Townsend
 * 🇺🇸 Bethanie Mattek-Sands / 🇺🇸 Shelby Rogers