The St. Petersburg Ladies' Trophy (; formerly known as the Ladies Neva Cup) was a tournament for professional female tennis players played on indoor hardcourts. The event was classified as a WTA 500 tournament and was first held in St. Petersburg in 2003 until 2022.
The event was held since 2003 in St. Petersburg. It was an ITF Women's Circuit event until 2015. In 2016, it was upgraded to a WTA Premier tournament in 2016, offering a prize money of $753,000, up from only $25,000 and $50,000 in previous years. The event replaced the Proximus Diamond Games on the WTA Tour from 2016.