Charleston Open

Charleston Open
WTA Tour
Founded1973 (1973)
Editions53 (2025)
LocationHilton Head Island, SC, U.S. (1973–74, 1977–2000)
Amelia Island, FL, U.S. (1975–76)
Daniel Island, SC, U.S. (2001–current)
VenueLTP-Daniel Island
CategoryWTA 500
SurfaceClay (green) – outdoors
Draw48S / 32Q / 16D
Prize moneyUS$1,064,510 (2025)
Websitecreditonecharlestonopen.com
Current champions (2025)
Singles Jessica Pegula
Doubles Jeļena Ostapenko
Erin Routliffe

The Charleston Open, currently sponsored by Credit One, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $2.5 million purse, making it the first standalone WTA 500 event to make its purse equal to those of comparable events on the men's ATP Tour. The tournament celebrated 50 years in 2022 at the newly renovated Credit One Stadium located in Charleston, South Carolina.

The tournament is played on the green clay courts at LTP-Daniel Island (which contains the 10,200-seat Credit One Stadium) on Daniel Island in Charleston, South Carolina, US.